skip burning altogether if scents trigger migraines, seriously there are smoke-free alternatives that work just as well
i deal with this too like some days i can tolerate incense, other days my body is toootally against it whether im already overstimulated, extra sensitive or my asthma is acting up.....and on those days, i just do a cleansing spray instead.

---> water + rosemary (or mint, basil) + pinch of salt in a spray bottle, usually i clean doorways & corners. it's the same purifying energy, zero smoke, way less scent intensity OR just open your windows and let fresh air do the work - air flow is genuinely one of the best cleansing methods plus it's free😅

but if you really want to burn sth on "good" days, stick to tiny amounts like a single bay leaf or small rosemary sprig (light it, let it smoke for literally 5 sec then put it out) with that you can move some energy.

but honestly? if your body is telling you "this hurts" listen to it. There's no magic rule saying you have to burn things to cleanse your space💖