Most tolerated first medication for severe MCAS sensitivity?
4 years of severe long COVID/MCAS with mostly neurological and cognitive symptoms plus significant food and environmental reactivity. Extremely medication sensitive. Have tried ketotifen, cromolyn, and famotidine, all with bad reactions even at low doses, though I may not have gone slow enough.
Looking for recommendations on the most tolerated first medication, ideally something that calms overall mast cell reactivity and helps with brain fog, so other treatments can actually work. What worked for you when you were highly reactive and just starting out? I am between trying cromolyn or ketotifen again, just slower, or experimenting with something like Allegra