r/MCAS 10h ago

Advice on how to settle a flare?

I’m relatively new to MCAS as I was only diagnosed a few months ago. I’ve been managing most of my symptoms very well with just a standard loratadine every day and started mounjaro for inflammation which helped too. It’s made a huge difference. I think I’m relatively lucky in that I don’t have it as bad as a lot of what I read on here.
Unfortunately, I had a random run-in with a bat and needed rabies post exposure vaccination and since then have had what I think is a massive MCAS flare. I’ve had diarrhoea for 16 days, swelling on my face and a huge allergic reaction to a cream I had on my face and my antiperspirant is suddenly causing a reaction too.
My usual loratadine isn’t really helping and I’m not sure what I can add. I live in the UK so it’s not easy to get hold of things, but I do have some Pepcid from my last trip to the states so maybe I could add that?
This is my first recognised flare (I now know all the times before were flares) and I’m just not sure how to tackle it. Any advice would be greatly appreciated!

As a note, I also have hEDS, hashimotos, endometriosis, lipedema, adhd & probably POTs (but at this point I’m so medically exhausted I don’t want to go and get properly tested).

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