Tracking migraine on combined HRT
You're using combined HRT, and you want to know what migraine is doing around it. That takes two records on one timeline — here's how to keep both so the overlay is worth something at your next appointment.
The symptom side
Estrogen fluctuation is a established migraine trigger, and the transition is peak fluctuation — many women's worst migraine years. Whether yours come with aura is a clinically important fact, particularly for HRT conversations, because aura changes the risk discussion around some formulations.
The combined HRT side
The schedule is the anchor: your daily tablet or patch-change days, plus the mid-cycle phase switch if your product is sequential. The full schedule facts, sources included:
- Combined patch — continuous — Evorel Conti: change every 3–4 days (two fixed weekdays). FemSeven Conti: change every 7 days. No phase change — every patch is the same.
- Combined patch — sequential — Patch changes twice weekly (Evorel Sequi) or weekly (FemSeven Sequi), with a mid-cycle switch from estrogen-only patches to combined patches.
- Combined oral — continuous — One tablet, once daily, no break.
- Combined oral — sequential — One tablet every day; the composition switches on a product-specific day (Femoston on day 15, Elleste Duet on day 17).
How to run the record
- Log the daily tablet or patch change as it happens — and if your product is sequential, make sure your schedule in Perity knows the phase-switch day.
- Log attacks with duration and severity; note aura explicitly — its presence belongs permanently in your record.
- Migraine arrives in episodes, which is a gift to tracking: every logged episode carries a timestamp, and your schedule (and the phase switch, if sequential) gives the timeline its structure. Episodes that keep landing in the same place relative to it are exactly the pattern memory smooths over and a dated record preserves.
- When anything changes — dose, product, schedule — the change date splits your record into before and after. That comparison is the entire point of keeping it.
What the overlay can show
Alignment, not cause: Perity lines your migraine entries up against your schedule (and the phase switch, if sequential) and shows you where they cluster — before and after any change, split by cycle phase where that's relevant. It never tells you why, and it never suggests what to do about it. It hands you dated evidence; the interpretation happens in the appointment, with your clinician.
Questions
Does combined HRT help with migraine?
That's a question for your prescriber — Perity doesn't do efficacy claims, about anything. What Perity gives you is your own before-and-after: migraine entries, dated and phase-tagged where relevant, either side of every change. That record is how the question gets answered for you specifically, rather than in general.
What if my prescriber changes the dose or product?
Update the schedule in Perity the day it changes. Your record splits into before and after automatically — symptom counts either side of a dated change are the cleanest evidence a follow-up appointment can ask for.
Perity informs, never prescribes — decisions belong with you and your clinician.
Educational content, written and maintained by Perity (founder: EiEi), grounded in the sources cited in Perity's Learn library. It is not medical advice, and Perity never interprets your data or recommends treatment. Last reviewed 2026-07-09.
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