@carolineishealing: after being in the heat for 2 hours this morning, my chest broke out into this rash that has continued to get bigger. I have POTS, ME/CFS and chronic migraines. i had a doctors appointment a couple days ago where they asked me if i get heat rash in consideration of possible MCAS. any thoughts? #chronicillness #xyzbca #doctors #invisibleillness #community
Hi! I’m a medical assistant at a primary care practice and I have POTS, hEDS, and MCAS and that definitely seems like a heat rash and a histamine reaction. If it doesn’t go away within 24 hours or gets bigger def get it checked out
2026-07-05 01:54:55
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💠♿Teagan💤💠 :
my guess is MCAS, like your caption said. I don't have it, just have friends with it, so I'm not 100% but it's definitely something to look into
2026-07-05 01:26:59
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𝑒𝓁𝒾𝓏𝒶𝓉𝒽𝑜𝓁𝑜𝓂𝑒𝓌 😱 :
ik im late, but its probably heat rash. i’ve had these since i was around one, and i have no relating health issues. they suck so use anti-histamines after a cold shower and hypchlroud acid like the tower 28 spray!! hope it goes away😭
2026-07-18 21:38:36
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cookz :
sunraah
2026-07-05 02:42:02
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chronically.rach :
I would definitely look into MCAS for sure!
2026-07-05 14:15:35
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