How do I know if my asthma is well-controlled?

Well-controlled asthma means daytime symptoms 2 or fewer days per week, rescue inhaler use 2 or fewer times per week, no nighttime awakenings, and no activity limitations. Tracking these metrics helps you and your provider assess your current control level.

What is peak flow and what is my personal best?

Peak flow measures your maximum airflow rate. Your personal best is the highest reading you achieve over 2 to 3 weeks when your asthma is well-controlled. Green zone is 80 to 100% of personal best, yellow is 50 to 80%, and red is below 50%.

Should I track asthma even when I feel fine?

Yes. Tracking during good periods establishes your baseline. This makes it much easier to spot early warning signs when your control starts to slip, often before you notice symptoms.

💨

Asthma

Asthma Tracker | Log Attacks, Triggers & Medication Use

Record asthma symptoms, rescue inhaler use, peak flow readings, and triggers so you and your provider can keep your asthma controlled.

Start Tracking

Try it today · Works on any device

✔Built by a veteran

✔Encrypted and private

✔Export anytime as CSV

✔Try it today

25M

Americans with asthma

50%

Of asthma patients have uncontrolled symptoms

10M

Missed school days per year due to asthma

2x/wk

Rescue inhaler threshold for controlled asthma

What it tracks

Every detail that matters, without the form fatigue

✓Rescue inhaler use (puffs and time)
✓Peak flow readings (morning and evening)
✓Symptom severity: wheezing, cough, chest tightness, shortness of breath
✓Triggers: exercise, cold air, allergens, smoke, stress
✓Nighttime awakenings due to asthma
✓Daily notes on activity limitations

💨

Asthma

Track attacks, triggers, and inhaler use.

Try It Free

Why it matters

Patterns you can only see with consistent data

Well-controlled asthma means rescue inhaler use 2 or fewer times per week. If you are using it more often, your treatment plan may need adjusting. Tracking inhaler use, peak flow, and triggers helps your provider assess your asthma control level and make precise adjustments.

Who uses this tracker

→People with persistent asthma tracking control level
→Veterans with service-connected asthma
→Parents monitoring a child's asthma (with appropriate consent)
→Anyone preparing for an asthma action plan review

Features

Built for how you actually feel

Rescue inhaler logging

Track every puff of your rescue inhaler with time and context. See weekly usage trends at a glance.

Peak flow monitoring

Log morning and evening peak flow readings to track your personal best and identify yellow/red zone drops.

Trigger identification

Tag triggers for each episode: exercise, allergens, cold air, smoke, stress. Patterns emerge quickly with consistent data.

Asthma control assessment

Your logged data maps directly to the standard asthma control questions providers use at every visit.

Using your asthma log

Consistent asthma tracking over 60 to 90 days gives you a comprehensive picture that memory alone cannot provide.

Log every episode as it happens using Quick Log. It takes under 30 seconds. Add detail when you have time. After 30 entries, patterns begin to emerge. After 90 days, you have a complete record you can export and share with anyone supporting your care.

✓Log every episode, not just severe ones
✓Include context notes about food, sleep, and stress
✓Export your complete history as CSV anytime
✓Review weekly averages to spot trends

Common tracking mistakes to avoid

Only logging on bad days

If you only log when symptoms are severe, you lose your baseline. Log every episode including mild ones. The contrast is what reveals patterns.

Not adding context

A severity score without context tells you little. The food you ate, how you slept, your stress level. These are what connect the dots between cause and effect.

Stopping too early

Patterns take time to emerge. The first 2 weeks are baseline building. Weeks 3 to 8 are where connections appear. Stopping at day 14 means you never see the picture.