Updated 29 Oct 2026
At a glance
- A useful hidradenitis suppurativa (HS) log records each new lump with its date, body site, size, pain, and drainage, plus sleep, function, possible triggers, and treatment changes.
- The NHS describes HS as a painful, long-term skin condition that develops near hair follicles with sweat glands, usually around the groin, bottom, chest folds, and armpits (NHS).
- A US analysis of more than 48 million patient records found an overall HS prevalence of 0.10%, or 98 per 100,000 people (Garg et al., 2017).
- The American Academy of Dermatology (AAD) notes that breakouts often clear for a while and then return in the same area, which is why dated entries by body site matter.
- Hidradenitis Journey is a phone app (iPhone and Android) for tracking hidradenitis suppurativa (HS) that keeps lumps, drainage, pain, sleep, medicines, and visit notes in one dated history, and its insights show which habits and treatments come before calmer weeks.
HS flares rarely line up with appointment dates. By the time a dermatologist examines the skin, the worst lump may have drained, healed, or moved to another area, and the weeks of pain, dressing changes, and missed sleep are hard to describe from memory.
This guide explains how to track hidradenitis suppurativa symptoms in a short, repeatable format: what to record for each lump, how to log body sites and drainage, how to use photos, how to note pain, itch, sleep, and function, how to record possible triggers, and how to follow treatment over weeks.
What hidradenitis suppurativa symptom tracking is and what it covers
HS symptom tracking means recording each new lump and each flare in the same short, dated format: where it appeared, how large and painful it was, whether it drained, and how it affected the day. Using the same fields every time lets one month, one body area, or one treatment period be compared with another.
The NHS describes HS as a painful, long-term skin condition with boil-like lumps, blackheads, cysts, scarring, and channels in the skin that leak pus. It notes that HS is not infectious and is not linked to poor hygiene, and that there is no definitive test, so diagnosis relies on examining the affected skin (NHS). So what you write down helps your doctor.
HS is uncommon, but you are far from alone. A US population analysis found 98 cases per 100,000 people, with the highest prevalence among adults aged 30 to 39 (Garg et al., 2017). If a diagnosis is still being worked out, a log is still useful; see what to bring to a 15-minute hidradenitis visit.
In Hidradenitis Journey, the Daily check-in records nodule pain, drainage, skin-fold flares, and sleep in the same guided fields each time. Because the questions stay the same, a flare in spring and one in autumn can be read side by side.
What to record for each new HS lump or flare
A lump entry works best when it is short and uses the same fields each time. Fill it in the day the lump appears, then add a line when it changes, drains, or settles.
The HS lump log below, from Hidradenitis Journey (part of Health Journey Labs), lists the core fields and why each one helps.
| Field | What to write | Why it helps |
|---|---|---|
| Date and warning signs | Day the lump appeared; any tenderness, burning, itch, or sweating in that spot beforehand | The AAD notes skin can feel tender, burn, or itch before a lump appears |
| Body site and side | Armpit, groin, buttocks, inner thigh, under the chest, waistband, neck; left or right | Shows whether flares return to the same spot |
| Size and depth | Pea-sized, grape-sized, or larger; surface or deep | Tracks whether lumps grow or join together |
| Pain | 0–10 at its worst that day | Lets you compare flares across weeks |
| Drainage | None, small, moderate, heavy; blood or pus; odor | Shows when a lump opened and how long it kept leaking |
| Days to settle | Date it drained, healed, or became a scar | Shows whether flares are getting shorter or longer |
| Function | What you changed, skipped, or could not wear | Shows the real impact on work, sleep, and movement |
Sources: NHS and the American Academy of Dermatology.
In Hidradenitis Journey, the Daily check-in holds pain, drainage, and skin-fold flare fields, so most of this table takes a minute to fill. The Flare Tracker records onset, sites, intensity, and a short note for days clearly worse than your usual.
How to log body sites, drainage, and dressing changes
Drainage can stain clothes and make you plan your day around dressings, and noting that is part of the log, not a side detail. The AAD describes HS breakouts that clear for a while and later return in the same area, sometimes in exactly the same spot (AAD). Recording the site precisely, such as "left armpit, front edge" rather than "armpit," makes that repetition visible over months.
Drainage deserves its own line. The AAD notes that when an abscess breaks open, blood and pus can leak and leave wet spots on clothing. Useful drainage notes include:
- the date a lump opened and the date it stopped leaking;
- a simple amount scale, such as spotting, one dressing a day, or several changes a day;
- the number of dressing changes and any clothing changes;
- odor, color, or bleeding, in plain words.
Tip: count dressing changes rather than describing drainage as "a lot." A number such as "four pads before noon" is easy to compare from one month to the next. For more on drainage days, see hidradenitis flare drainage days: what to note for visits.
With Hidradenitis Journey, the Flare Tracker keeps sites and intensity for each flare, and the Daily Journal holds dressing counts and clothing notes, including by voice when typing hurts.
How to photograph HS lesions and track scars and tunnels
Photos help when a lump has healed by visit day. The AAD notes that repeated healing and reopening can cause scars and tunnels to form under the skin, and that for some people scars are the only visible sign when the skin is not flaring (AAD). A dated photo series shows what the visit cannot.
A consistent photo routine makes images comparable:
- use the same room, light, and distance each time;
- take one wide shot to show the area and one close shot of the lesion;
- photograph on the first day, at its worst, and when it settles;
- name or note each photo with the date and site.
Scars can also limit movement. The AAD notes that thick scars can make reaching or walking difficult. If raising an arm or taking long steps has become harder, write down what you can no longer do and since when, because a functional note is easier to act on than "it feels tight." See hidradenitis scar and tunnel questions: what to photograph and log for more detail. Keep photos of intimate areas in a private, locked folder.
With Hidradenitis Journey, a Daily Journal entry can record which photos you took and what changed, and the Flare Tracker dates the same flare.
How to track HS pain, itch, sleep, and daily function
The AAD lists pain, itch, and sleep loss among the ways HS can affect daily life, noting that pain and itch can make it harder to fall asleep and stay asleep, and that continual sleep loss can lead to daily fatigue. It also notes that the groin, armpits, and thighs tend to be the itchiest areas (AAD).
A short daily line covers most of it:
- pain at its worst, 0–10, and where;
- itch at its worst, 0–10;
- hours slept and how many times pain woke you;
- one line on function: walking, sitting, lifting the arms, work, exercise, or plans canceled.
Record joint pain too. The AAD advises telling your dermatologist about joint pain, because people with HS have a higher risk of arthritis (AAD). Note which joints, any morning stiffness, and how long it lasts. Mood belongs in the log as well, since the AAD notes that HS is linked to higher rates of depression.
In Hidradenitis Journey, the Daily check-in covers physical symptoms, emotional state, and sleep in one guided pass. Over weeks, insights can show whether high-pain days follow short nights or come before them, which can help you plan rest and dressing changes around the hardest hours.
How to track possible HS flare triggers
Possible triggers vary between people, so the log lets you check your own instead of assuming. The NHS notes that obesity and smoking are strongly associated with HS and can make symptoms worse, and that some people flare before a period (NHS). The AAD lists sweating and overheating, friction from tight clothing, waxing, and nicks from shaving as things that can irritate skin and lead to flares (AAD).
The trigger checklist below, developed by Hidradenitis Journey, shows what to record for each one.
| Possible trigger | What to record | Related detail in published sources |
|---|---|---|
| Heat and sweating | Hot days, workouts, long hours in warm rooms | Sweating and overheating can cause a flare (AAD) |
| Friction | Tight waistbands, leggings, straps, long walks | Clothing rubbing on lumps can worsen HS (AAD) |
| Hair removal | Date and method of shaving or waxing, any nicks | Dermatologists generally advise against waxing (AAD) |
| Products | New deodorant, soap, or wash | Alcohol, baking soda, parabens, dyes, and fragrance can irritate (AAD) |
| Smoking and weight | Cigarettes per day, quit date, weight changes | Strongly associated with HS (NHS) |
| Cycle timing | Period start dates, if relevant | Some people flare before a period (NHS) |
Sources: NHS and the American Academy of Dermatology.
With Hidradenitis Journey, the Daily check-in records external factors next to symptoms, and the Period Tracker adds cycle dates when relevant. A few weeks of entries make it clear whether new lumps follow hot weeks, a new product, or a certain cycle point, which points to one change worth testing.
How to track HS treatments and skin-care routines over weeks
HS treatment often changes in steps, and each step needs time. The NHS describes short antibiotic courses for infected lumps, longer low-dose courses of at least 3 months to reduce new lumps, antiseptic washes, and, in severe cases, treatments that suppress the immune system or surgery (NHS). Over months like these, dates are what let you and your doctor see what helped.
For each treatment, record:
- the name, dose, and start date;
- missed doses or pauses, with the reason;
- side effects and when they began;
- daily routines, such as an antimicrobial wash, a warm compress, or laser sessions, with dates.
Tip: at the start of each month, count new lumps and drainage days from the previous month. Two plain numbers per month make it easier to judge a 3-month course. The AAD also advises telling your dermatologist if any wound fails to heal, opens up after healing, or becomes more painful (AAD), so add those dates when they happen.
In Hidradenitis Journey, My Meds keeps medicine names and timing, and My Labs holds test dates and results.
How to bring an HS log to a dermatology visit
A visit goes further when the log is condensed to one page. Weeks of entries are useful to you; your dermatologist needs the summary. The NHS notes that recognizing HS early helps prevent it from getting worse (NHS), so a clear record matters from the first visit onward.
A short summary for the visit can include:
- new lumps per month and the body sites involved;
- drainage days and dressing changes per week;
- worst pain, sleep, and function in the last month;
- current treatments with start dates, missed doses, and side effects;
- 2 or 3 dated photos of the worst flare;
- your top three questions, written in order.
Tip: write your most important question first and read it aloud early in the appointment, before the examination. Short visits often end before the last question on a list. After the visit, add what was decided and when to follow up while it is fresh, so the next log period has a clear starting date.
With Hidradenitis Journey, My Care Team stores each clinician and visit notes, and the Doctor Report builds a dated summary from what you logged.
How Hidradenitis Journey can help
A notebook can hold HS entries. The harder step is relating them over months: seeing whether new lumps follow hot weeks, friction, a new product, short nights, or a treatment change, and whether flares are becoming fewer or shorter.
Hidradenitis Journey is a personal hidradenitis suppurativa tracker from Health Journey Labs on the App Store and Google Play. It records each flare with its sites, pain, and drainage, together with sleep, mood, medicines, and visit notes. Its insights show which habits and treatments come before calmer or harder weeks. Learn explains the condition in plain words, and the AI companions, such as Clara, answer questions when a new symptom or result is hard to read. Below is what you can use and how each part helps:
- Daily check-in — A short guided pass across symptoms, mood, nutrition, sleep, exercise, meds, and external factors, including nodule pain, drainage, and skin-fold flares, so links you would not remember on your own show up side by side.
- Daily Journal — Freer notes, including voice when typing hurts, such as dressing counts, photo notes, and visit debriefs, that give insights detail a score alone cannot show.
- Flare Tracker — Mark a day clearly worse than your usual, with onset, sites, and intensity, so insights can separate a one-off spike from a repeating pattern.
- My Meds — Medicine names and timing, so insights can relate a start date or dose change to lump counts, pain, and sleep.
- My Labs — Result dates for swabs, blood work, imaging, and other tests, compared with how you felt in the weeks before and after.
- Weekly Goals — Set one small aim, such as a daily wash routine or looser clothing on long days, and see whether it held and whether flares changed.
- Learn — Short education topics on HS themes such as flares, sleep, pacing, and visit preparation.
- AI companions — Clara and specialist companions already see your logged history, which helps with visit wording or questions after a new diagnosis.
- My Care Team — A profile for each clinician, plus upcoming appointments and notes for each visit, used before, during, and after appointments.
- Doctor Report — Two views: the Appointment Planning Report helps you prepare what to ask, and Generate Report, opened from a saved doctor, builds a dated summary of your recent progress for that doctor.
- My Assessments — Structured check-ins that give insights more context about you across weeks.
- Food Tracker — Meal and drink lines when food is something you and your clinician are watching alongside flares.
- Period Tracker — Cycle dates, so insights can show whether new lumps cluster at a certain point in the cycle.
- Weight Tracker — Weight entries when weight is part of what you and your clinician are watching.
Everything you log builds one history. Guided forms include the key questions, and you can add custom symptoms when you need your own labels. Hidradenitis Journey is free to download.
We make Hidradenitis Journey at Health Journey Labs. This guide is educational and does not replace care from your clinicians; for diagnosis and treatment decisions, work with your treating clinicians.
Sources
- NHS — Hidradenitis suppurativa (HS)
- American Academy of Dermatology — Hidradenitis suppurativa: Signs and symptoms
- American Academy of Dermatology — Hidradenitis suppurativa: Tips dermatologists give their patients
- Garg A, et al. Sex- and Age-Adjusted Population Analysis of Prevalence Estimates for Hidradenitis Suppurativa in the United States. JAMA Dermatol. 2017
FAQ
What is the best way to track hidradenitis suppurativa symptoms?
Record each new lump in the same short format: date, body site, size, pain, and whether it drained. Add one daily line on sleep and function. Short entries made the same day are more accurate than notes reconstructed the week before a visit.
With Hidradenitis Journey, the Daily check-in holds those fields on flare days and calmer days alike. Looking back over a month shows whether new lumps cluster around hot weeks, short nights, or one body area, which points to small changes worth testing in daily routines.
What should I write down when a new HS lump appears?
Write the date, the exact site and side, an approximate size, and pain from 0 to 10. Note any tenderness, burning, or itch you felt in that spot in the days before, since those early signs can help you recognize the next flare sooner.
In Hidradenitis Journey, the Flare Tracker records onset, sites, and intensity for each flare in a few taps. Over months, insights can show whether early warning signs reliably come before lumps, which can help you start a warm compress or rest earlier.
How do I track HS drainage without it taking over the day?
Use a simple scale, such as spotting, one dressing a day, or several changes a day, and count dressing changes rather than describing amounts. Add the date a lump opened and the date it stopped leaking. Two or three numbers per day are enough.
With Hidradenitis Journey, the Daily Journal accepts quick voice notes, which helps when typing is uncomfortable. After a few weeks you can compare drainage days across months, showing whether they are becoming fewer after a treatment or routine change.
Should I take photos of HS flares?
Photos are useful because lumps often heal or drain before an appointment. Use the same light and distance, take one wide and one close shot, and photograph on the first day, at the worst point, and when it settles. Keep intimate photos in a private, locked folder.
In Hidradenitis Journey, a Daily Journal entry can note which photos you took and what changed that day. Within a month you can link that dated flare with sleep, pain, and treatment around it, so the photos come with context when you show them at a visit.
How do I find my hidradenitis suppurativa flare triggers?
Log possible triggers on every day, including calm ones: heat and sweating, tight clothing, shaving or waxing, new products, smoking, weight changes, and cycle timing when relevant. Comparing flare weeks with quiet weeks shows which factors repeat before new lumps and which ones do not.
With Hidradenitis Journey, the Daily check-in records external factors next to symptoms every day. Side by side, your weeks show whether new lumps follow certain conditions, which helps you choose one change to test, such as looser clothing on long walking days.
Does hidradenitis suppurativa pain or itch belong in the log on days without a new lump?
Yes. Pain and itch from older lesions, scars, or tunnels can affect sleep and movement even when nothing new appears. A daily 0–10 for pain and itch, plus hours slept, shows your baseline and makes flare days easier to compare.
In Hidradenitis Journey, the Daily check-in keeps pain, itch, and sleep in one short pass. A few weeks of entries make it clear whether pain is gradually easing under treatment or whether itchy nights come before new lumps, which helps you plan rest and skin care.
How do I track scars and tunnels from HS?
Record where each scar or tunnel is, whether it drains, and whether it reopens after healing. Note any movement it limits, such as raising an arm or taking long steps, with the date you first noticed the change. Photos every few months show slow changes clearly.
With Hidradenitis Journey, dated Flare Tracker entries show how often the same site reopens. Before long you can see how repeat flares at one site lines up with treatments and routines, giving your dermatologist a clear history when discussing procedures or surgery.
How long should I track HS before judging a treatment?
Many HS treatments need weeks to months, and the NHS describes some antibiotic courses lasting at least 3 months. Record the start date and count new lumps and drainage days each month, so you can compare the months before and after starting the treatment.
In Hidradenitis Journey, My Meds keeps names, doses, and start dates next to your symptom history. Over several weeks you can see how a start date or dose change lines up with monthly lump counts and pain, so your dermatologist can see what actually changed.
Should I log HS side effects and missed doses?
Yes. Write the date, what you noticed, and how long it lasted, plus any missed or paused doses and the reason. A missed week can explain a flare that looks like a treatment failure, and side effect dates help your clinician adjust the plan safely.
With Hidradenitis Journey, My Meds and the Daily Journal keep doses, pauses, and side effects dated together. Over a few weeks you can see whether flares followed missed doses, which helps you and your clinician separate a treatment problem from a gap in use.
How do I track mood and the emotional side of HS?
A short daily mood rating and one line on what affected it are enough. Pain, odor, and drainage can affect relationships, clothing choices, and plans, and the AAD notes that people with HS develop depression more often. Recording mood helps you raise it at visits.
In Hidradenitis Journey, the Daily check-in includes emotional state alongside physical symptoms. Looking back over a month shows whether low-mood stretches follow high-pain or poor-sleep weeks, and the AI companions can help you find words to describe that at an appointment.
What should I bring to a dermatology visit for HS?
Bring a one-page summary: new lumps per month and their sites, drainage days, worst pain and sleep, current treatments with start dates, and a few dated photos. Put your most important question at the top and ask it early, before the examination begins.
With Hidradenitis Journey, the Doctor Report builds a dated summary from what you logged, and My Care Team keeps notes for each clinician. Insights then compare weeks before and after the visit, showing whether the plan changed flare frequency.
Can tracking weight or smoking help with HS?
The NHS notes that obesity and smoking are strongly associated with HS and can make symptoms worse, and the AAD notes that quitting smoking can reduce flare-ups. Recording weight, cigarettes per day, or a quit date lets you see changes against your flare history over months.
In Hidradenitis Journey, the Weight Tracker and Weekly Goals keep those changes dated next to symptoms. Side by side, your weeks show whether calmer months followed a change in smoking or weight, which can help you keep going with a hard habit.
When should an HS lump or wound be checked quickly?
The AAD advises telling your dermatologist if any wound fails to heal, opens up after healing, or becomes more painful. The NHS notes that some lumps can develop a bacterial infection that needs antibiotics. If you are unsure, contact your clinician the same day.
After any urgent review, a few lines in the Hidradenitis Journey Daily Journal record what was found and prescribed. That episode then sits in your log with the weeks before and after it, ready for your next appointment.
How private is a hidradenitis suppurativa symptom log?
A hidradenitis suppurativa log can hold photos of intimate areas, drainage, and dressing changes, which is very personal detail. Treat any digital log as private, and on paper, keep the notebook somewhere only you control.
The app's own security screen lists Hidradenitis Journey as HIPAA-ready and GDPR compliant, with AES-256 encryption for your data. You choose what to share with partners or clinicians.