Frequently asked questions

How is the flare score calculated?

The flare score is a number you set each day — from 0 (no flare) to 10 (severe). It's your subjective read of how your skin felt that day: redness, burning, swelling, pustules. No algorithm fills it in.

The app uses your daily scores to compute weekly averages and trend lines in the Insights screen. A "flare day" is defined as any day where your score exceeds your personal 30-day average by more than 1.5 points — this baseline adapts as your data grows.

How are trigger correlations calculated?

Each time you log a trigger (e.g. red wine, sun exposure), the app records it alongside your score for that day. Over time it calculates a correlation percentage: the proportion of check-ins where that trigger appeared and your score that day or the next was above your personal flare threshold.

Correlation is not causation — a high percentage means the trigger and flares often co-occur, not that one causes the other. Use these numbers as a starting point for conversations with your dermatologist, not a diagnosis.

What's in the doctor PDF report?

The one-tap export generates a structured PDF designed to be read in a 5-minute appointment. It includes four labeled sections:

The report is generated on-device and is never stored or shared — you download it and decide what to show your doctor.

Does gut health affect rosacea flares?

Research shows people with rosacea have significantly higher rates of small intestinal bacterial overgrowth (SIBO) compared to healthy controls — and a controlled study found that eradicating SIBO led to sustained rosacea clearance in the majority of patients. Gut dysbiosis triggers systemic inflammation that disrupts the skin barrier, worsening facial redness and flares. Tracking gut symptoms alongside flare scores helps surface this connection in your own data.

What are the most common rosacea triggers?

According to a National Rosacea Society survey of 1,066 rosacea patients, the top five triggers are:

1. Sun exposure — 81% of patients
2. Emotional stress — 79%
3. Hot weather — 75%
4. Wind — 57%
5. Heavy exercise — 56%

Other frequent triggers include alcohol (red wine especially), spicy food, hot beverages, and certain skincare products or fragrances. Triggers vary significantly between individuals — population averages are a starting point, not a diagnosis. Personal tracking over weeks is the only reliable way to identify your own pattern.

Does RosaceaTrack follow clinical standards for rosacea tracking?

RosaceaTrack's check-in flow is aligned with the National Rosacea Society 2026 patient diary — the same format dermatologists recommend patients bring to appointments. The app covers all 10 NRS symptom types (flushing, papules/pustules, burning, dryness, stinging, skin tightness, sensitivity, itching, swelling, visible blood vessels), uses the same 0–10 severity scale with clinical labels (0–2 Clear · 3–4 Mild · 5–7 Moderate · 8–10 Severe), and organises triggers into the same categories used in rosacea clinical research.