Updated 3 October 2026
At a glance
- NICE defines a flare-up as a sudden, temporary worsening of symptoms, and says the time flare-ups last can vary.
- the VA Whole Health Library states that during a pain flare it is often difficult to think clearly, focus, concentrate, or problem-solve.
- CDC: in 2023, 24.3% of adults had chronic pain, and 8.5% had chronic pain that frequently limited life or work activities in the past 3 months.
- Chronic Pain Journey records a flare's onset, intensity and a short note, and keeps each flare in one dated history that you can read in the calendar view.
Flares are hard to describe a week later. The onset blurs, the order of events shifts, and the number you remember is usually the worst one. A short entry on the day keeps the details a clinician asks about.
This guide lists the fields for a same-day flare entry, the pain and function words that help, triggers to jot down, how to log medicines as dated facts, and how to close the entry when the flare eases. It also covers what to bring to a visit and when to get help. Chronic Pain Journey (by Health Journey Labs) holds each part in one history.
What counts as a flare: the definition to write at the top of the entry
NICE defines chronic pain as pain that persists or recurs for more than 3 months. It defines a flare-up as a sudden, temporary worsening of symptoms. Usually this refers to more intense pain on a day-to-day basis, and it can also refer to a change in fatigue, stiffness, function or disease activity.
the VA Whole Health Library gives a working version: a flare-up is an increase from normal, or baseline, levels of pain. Both definitions compare today with a usual day, so the entry needs a reference point. Write one line at the top that says what a usual day looks like, for example "usual: 4 out of 10, work done, slow evening".
A flare entry then answers one question: what differs from the usual line? Name it in pain, fatigue, stiffness or function.
(Chronic Pain Journey checklist: usual-day line, what changed, how far it changed.)
Marking a day clearly worse than the usual hard week is the job of the Flare Tracker in Chronic Pain Journey, which records onset, intensity and a short note. Flagged days sit in the same history as ordinary days, so the gap between a flare and the usual line is visible in the weekly view.
Why the entry happens the same day: thinking is harder during a flare
the VA Whole Health Library states that when a pain flare occurs, it is often difficult to think clearly, focus, concentrate, or problem-solve. A person may go into survival mode just by trying to endure the increased pain level, and the page recommends planning ahead, when pain is lower. (Source: va.gov.) For logging, that points to a short entry made at the time and a longer one only if it is easy.
A same-day entry holds details that fade by the next week:
Same-day flare list, by Chronic Pain Journey
- When the flare began, in plain words ("after lunch", "woke with it").
- The intensity at its worst so far.
- What you were doing in the hours before.
- How the day was changed.
Four items are enough. Anything more can be added once the flare quiets.
From Chronic Pain Journey, we recommend writing the onset first, because it is the item that memory loses fastest.
Typing is hard on a bad day, so voice helps. The Daily Journal in Chronic Pain Journey accepts free-text notes and voice entry, which lets you speak the onset and what you were doing, and the Flare Tracker holds the short note for that day. Later, the flare reads in order, with the first hours still on record.
Five fields for the first entry: onset, intensity, activity, change, relief
Arthritis UK lists what a pain diary can include: pain levels on a scale of one to 10, the part of the body and what the pain felt like, whether it exhausted you, whether joints felt stiff or swollen, the activities of the day, sleep and medication. Kaiser Permanente describes the 0 to 10 scale as 0 for no pain and 10 for the worst pain you have ever known. The table below keeps five of those items for a same-day flare entry.
Table of onset to relief, by Chronic Pain Journey
| Field | Example wording | Why it helps |
|---|---|---|
| Onset | "Started mid-afternoon, built over an hour." | Shows speed and time of day. |
| Intensity | "7 out of 10 at the worst so far." | Gives a number a clinician already uses. |
| Activity | "Carried boxes, then sat for three hours." | Names what came before. |
| What changed | "Slept four broken hours the night before." | Records a possible link. |
| Relief | "Lying flat eased it a little." | Shows what helps. |
Use the same wording every time, so flares can be compared.
Which fields come ready-made? In Chronic Pain Journey, the Flare Tracker holds onset, intensity and a short note, and the Daily check-in holds pain intensity, fog, activity or pacing and how the day went. Together they cover the five fields without a blank page, so every flare is described in the same order.
Pain words and function lines that a clinician can use
Kaiser Permanente suggests questions to think about while using a pain journal. Where is the pain located? Is it throbbing, sharp, tingling, shooting or burning? Is it constant, or does it come and go? Does it change at different times of day, or get better or worse with activity? Does it keep you from falling asleep, or wake you in the night? A flare entry can answer two or three of these in a short line each.
Function belongs in the entry as well. CDC reports that in 2023, 24.3% of adults had chronic pain, and 8.5% of adults had chronic pain that frequently limited life or work activities in the past 3 months, which it calls high-impact chronic pain. A flare entry should say what the day limited.
Useful function lines are short and concrete:
Function limits checklist, by Chronic Pain Journey
- ☐ "Stopped work at noon."
- ☐ "Needed help with dinner."
- ☐ "Canceled the evening walk."
- ☐ "Could not sit through a meeting."
A pain number leaves out function, so where do the limits go? The Daily Journal in Chronic Pain Journey records what you canceled, a meeting left unfinished and leftover guilt. My Care Team keeps visit notes, including a note that the clinician asked mainly for a 0 to 10 score, so function lines can be raised at the next appointment.
Triggers to write down the same day, including no clear trigger
the VA Whole Health Library suggests trying to understand what can create a flare-up. Its examples are bending or lifting something, not getting enough sleep and an emotionally stressful conversation. It also notes that if a person tries to get too much done on a good day, it might lead to several bad days, and that sometimes pain flares even when a person is doing everything right.
NICE adds that the reason for a flare-up may not be identified. A same-day log therefore accepts "no clear trigger" as a complete answer. Write the line anyway, because a run of flares with no trigger is itself a finding for the visit.
Candidate items to jot down on the day:
Same-day trigger checklist, by Chronic Pain Journey
- ☐ Lifting, bending or a long stretch in one position.
- ☐ A short night or broken sleep.
- ☐ A stressful conversation or deadline.
- ☐ An unusually busy good day before the flare.
Do the same triggers return? Three Chronic Pain Journey pieces collect them: the Daily check-in records sleep, activity or pacing and external factors, the Flare Tracker marks the flare day, and the Daily Journal holds the stressful conversation in words. A trigger that shows up before several flares becomes visible across weeks.
Medicines used on a flare day: logged as dated facts
A flare entry can name the medicines used that day. Treat each one as a dated fact: the name, the day, and whether it was a regular or an as-needed item. Kaiser Permanente lists side effects of pain medicine among the things a pain journal can track, so a short line about how a medicine felt belongs in the same entry.
The entry records what happened. Choices about any medicine stay with the prescriber. the VA Whole Health Library says that a person who uses more pain medications during a pain flare should discuss it with their prescribing providers, so a flare-day medicine line is also a handover note for that conversation.
A visit question can take this form: "Is it worth reviewing my as-needed medicines together, using these flare dates?" That wording keeps the discussion on the record. The guide on tracking chronic pain meds with pain and fog weeks shows how to read the medicine lines with the pain history.
Medicines read better with the pain around them. My Meds in Chronic Pain Journey holds medicine names and the as-needed medicines you actually use, and it is read together with pain, sleep and fog in the same history. Flare dates and medicine dates then line up for the prescriber.
Closing the entry: when the flare eased and what came back
A flare entry has two ends. The onset opens it, and an easing line closes it. NICE notes that the time flare-ups last can vary, so the closing line is the only way to know how long this one lasted.
On the day it eases, write three short facts:
Steps to log easing and function, by Chronic Pain Journey
- When the pain returned to the usual line.
- Which part of function came back first, such as walking, sitting at a desk or cooking.
- Which part is still limited.
On a multi-day flare, write one entry per day, each with its own intensity and function lines. Daily entries show the shape of a long flare, and the closing line shows whether the usual line has moved since before it began.
(Chronic Pain Journey checklist: easing line, first function back, function still limited.)
The calendar view in Chronic Pain Journey shows each day colored by intensity, so a flare shows as a run of darker days that ends where your easing line sits. The Daily check-in adds pain intensity and how the day went for each day of the run, giving its length in days instead of a guess.
New symptoms or a sudden change: what a clinician reviews and when to get help
Contact a clinician if symptoms change suddenly or worry you. Call your local emergency number (for example 911) if there is danger. The sources used in this guide do not list a set of warning signs, so this guide does not either.
NICE sets out what a clinician does when a person has a flare-up of chronic pain: review the care and support plan, consider investigating and managing any new symptoms, and discuss what might have contributed to the flare-up. It also advises offering a reassessment when there is a change in symptoms such as a flare-up. A written record helps with each of those steps.
Bring three items from the flare log:
Steps for new symptoms in a flare
Chronic Pain Journey dates flares and any new symptom.
- The flare dates and how long each lasted.
- Any symptom that appeared for the first time during a flare, with its date.
- The possible contributors written on the day.
The guide on preparing for a short chronic pain visit with pain notes covers the rest of the visit packet.
Visit paperwork comes from the history. Chronic Pain Journey exports a one-page Doctor Report with dates, pain and flares, sleep, fog, meds and how you functioned, and My Care Team holds short visit notes for before, during and after the appointment. A new symptom noted on its flare day carries its date into the visit.
Counting flares across weeks: how often, how long, how high
One flare is a story. Several flares are a pattern. After a few weeks of same-day entries, count three things: how many flares occurred, how many days each lasted, and the highest intensity in each. Those three numbers answer the questions a clinician is most likely to ask about frequency, duration and severity.
Arthritis UK describes the diary as a way to give a broad picture of a condition over a long period and to pinpoint activities or events that made pain worse, as well as strategies that helped. Kaiser Permanente notes that a pain journal used over time can help you and your clinician understand what makes pain better or worse.
Add one comparison: flare days against the usual line. If the usual line drifts upward over the weeks, say so.
The guide on getting through a chronic pain flare day without losing notes covers what to keep on the worst days.
Counting by hand is slow when the history is long. The weekly and monthly views in Chronic Pain Journey color days by intensity, so flares stand out as dark runs between lighter days. Insights and correlations strengthen as entries accumulate, which lets triggers and baseline drift show across weeks.
How Chronic Pain Journey can help
A notebook can hold a same-day flare entry. When entries need to be read together with sleep, medicines and function, one app keeps them in one place. Compare options in Best Chronic Pain Apps 2026.
Chronic Pain Journey is a personal chronic pain tracker from Health Journey Labs on the App Store and Google Play. It lets you flag a flare the day it starts, add onset and intensity in a few words, and fill in the rest by voice or text when it is easier. Each flare then keeps its own order of events, so a clinician reads dates and changes instead of a summary. Below is what you can use and how each part helps.
- Daily check-in — The guided daily pass over symptoms, emotional state, nutrition, sleep, exercise, meds and external factors, with pain intensity, fog, activity or pacing and how the day went.
- Flare Tracker — Flags a day clearly worse than the usual hard week and holds onset, intensity and a short note, so flares can be compared with each other.
- Daily Journal — Free-text and voice notes for what you canceled, partner talks, visit debriefs and a meeting left unfinished, which add context to the scores.
- Weekly Goals — One small aim for the week and whether it held, read against real check-ins.
- My Meds — Medicine names and the as-needed medicines you actually use, kept as dated facts and read with pain, sleep and fog.
- AI companions — Clara for general chat and specialist companions for knowledge, fitness, nutrition and relationships, all of which see your logged history.
- Doctor Report — A one-page summary exported from your logged history, with dates, pain and flares, sleep, fog, meds and how you functioned.
- My Labs — Result dates for imaging, blood work and other tests, read against function and pain.
- Learn — Short topics on pacing, sleep, flares, visit preparation and fog, with prompts tied to your own weeks.
- My Assessments — Structured check-ins that go beyond the daily scores, plus the life and social context you gave at onboarding.
- My Care Team — Your clinicians and short visit notes, for preparing questions, jotting during the visit and reviewing afterward.
- Food Tracker — Meal and drink lines, read against pain, energy and sleep.
- Weight Tracker — Scale readings or body notes, read against energy, sleep and pain weeks.
- Period Tracker — Start and stop dates, flow and how heavy or light bleeding felt, read against pain or energy.
Everything you log builds one history, and insights get stronger as it grows. Custom symptoms let you add your own labels.
We make Chronic Pain Journey at Health Journey Labs. This guide is educational and does not replace medical advice. Diagnosis, medication decisions, and urgent care decisions belong with your treating clinicians.
Sources
- NICE — Chronic pain (primary and secondary) in over 16s: assessment of all chronic pain and management of chronic primary pain (NG193)
- Whole Health Library (VA) — Pain Flare Management Plan: Suggestions to Offer Patients
- CDC National Center for Health Statistics — Chronic Pain and High-impact Chronic Pain in U.S. Adults, 2023
- Arthritis UK — What is a pain diary and how do I start one?
- Kaiser Permanente — Learning About a Pain Diary
FAQ
The answers below draw on the sources cited in this guide, and the app they mention is Chronic Pain Journey (by Health Journey Labs).
What counts as a flare in chronic pain?
NICE defines a flare-up as a sudden, temporary worsening of symptoms, usually more intense pain on a day-to-day basis. It can also refer to a change in fatigue, stiffness, function or disease activity, and flare-ups can be unpredictable.
The Flare Tracker in Chronic Pain Journey flags a day clearly worse than your usual hard week, which gives you your own working definition and a dated list of the days that met it.
Why log a flare the same day it happens?
the VA Whole Health Library says it is often difficult to think clearly, focus, concentrate or problem-solve during a pain flare, and it recommends planning ahead. A few words on the day keep the onset and the order of events, which fade quickly.
With Chronic Pain Journey, the onset can go into the Flare Tracker in a line and the rest into the Daily Journal by voice, so a rough stretch still leaves a record for later.
What is the least I should write during a flare?
Write the onset in plain words, the worst intensity so far on a 0 to 10 scale, and what you were doing before it started. Those three lines give a clinician the speed, size and context of the flare, and the rest can wait until the pain eases.
The Flare Tracker in Chronic Pain Journey holds onset, intensity and a short note, so the minimum entry has its fields ready and nothing needs formatting or building on a bad day.
How do I rate intensity when pain is always there?
Kaiser Permanente describes a scale from 0 for no pain to 10 for the worst pain you have ever known. When pain is constant, rate the flare against your own usual line, for example 4 on a usual day and 7 at the worst point today.
Scores in the Daily check-in of Chronic Pain Journey stay in one history, so the usual line and the flare peaks can be read on the same calendar and compared by color.
What if I cannot find a trigger?
NICE notes that a reason for the pain or the flare-up may not be identified, and the VA Whole Health Library says pain sometimes flares even when a person is doing everything right. Write "no clear trigger" and list what the day contained.
The Daily check-in in Chronic Pain Journey records sleep, activity or pacing and external factors on every day, so an unexplained flare still has context beside it when a clinician asks.
How should I describe the pain itself?
Kaiser Permanente suggests asking where the pain is, whether it is throbbing, sharp, tingling, shooting or burning, and whether it is constant or comes and goes. Pick the words that fit and reuse them from one flare to the next.
A short note in the Flare Tracker of Chronic Pain Journey is enough for those words, and repeating them makes it easy to see whether the quality of the pain changed between flares.
Should I log medicines used during a flare?
Yes, as dated facts: the name and the day. Kaiser Permanente lists medicine and its side effects among the items a pain journal can track. Choices about any medicine stay with the prescriber, and a useful visit question is "Is it worth reviewing my as-needed medicines together?"
My Meds in Chronic Pain Journey keeps names and the as-needed medicines you use, read with pain, sleep and fog, so the flare days and the medicine days sit in one history.
How do I log a flare that lasts several days?
Write one short entry per day, each with its own intensity, function line and any change. NICE notes that the time flare-ups last can vary, so the daily lines show how long this one ran.
The calendar view in Chronic Pain Journey colors each day by intensity, so a long flare appears as a run of darker days, and the closing day is easy to find when you review the month.
Can I use voice instead of typing during a flare?
Voice is useful when typing is hard. Speak the onset, what you were doing and what the day limited, in the same order as a written entry. A rough spoken note on the day holds more than a polished one written a week later.
The Daily Journal in Chronic Pain Journey supports voice entry, so the flare story reaches the history even when your hands or your concentration are not at their best on the day.
What do I bring to a visit after a flare?
Bring the flare dates, how long each lasted, the peak intensity, the possible contributors and any new symptom with its date. NICE describes reviewing the care and support plan and discussing what might have contributed to a flare-up.
The Doctor Report in Chronic Pain Journey exports a one-page summary of dates, pain and flares, sleep, fog, meds and function, so the visit starts from the record, not from memory of the worst day.
When should I contact a clinician about a flare?
A sudden change, or anything that worries you, is a reason to contact a clinician, and danger is a reason to use your local emergency number (for example 911). A flare that brings a symptom you have not had before deserves a date in the log and a mention at the visit.
Because Chronic Pain Journey files each note by day, the first appearance of a new symptom is dated, and a clinician can see the flare, the sleep and the activity around it.
Can ChatGPT help me summarize my flares?
A general chat tool works from what you type into it. It can help phrase a summary such as flare dates, lengths and peaks, but the dates and intensities have to come from your own record.
The AI companions in Chronic Pain Journey, including Clara, already see the logged history, so a request for visit wording starts from the flares you recorded, with their dates and intensities.
How do I show a clinician how often flares happen?
Count the flares, the days each lasted and the highest intensity in each, over at least several weeks. Three numbers are easier to discuss than a general statement that flares are frequent.
The weekly and monthly views in Chronic Pain Journey color days by intensity, so frequency can be counted from the dark runs, and the Doctor Report carries the dates to the visit.
What do I log on the day a flare ends?
Write when pain returned to your usual line, which function came back first and which is still limited. Those three facts close the entry and tell the clinician how long the flare lasted and how it settled.
Entries in Chronic Pain Journey stay in one dated history, so the easing line sits with the onset line from days earlier and the full length of the flare reads in order.
Should I worry about privacy when I track symptoms?
Pain scores, medicine doses and days you missed work are details that an employer, insurer or relative could misread. Protect the log with a screen lock, keep it off shared tablets, and decide line by line what goes into a disability or work form.
Entries you add to Chronic Pain Journey are your own health notes. Check the app's privacy policy for how data is stored and handled. Nothing in this article is medical advice.