Posted 9/24/2023 9:17 PM (GMT 0)
Derek,
Have you tried treating MCAS with an antihistamine like Zyrtec?
I frequently get bladder and UTI symptoms without evidence of infection. I have found that taking 1/4-1/2 tablet of Zyrtec daily or every 12 hours during a flare usually stops it. Zyrtec is typically well tolerated. If you are not currently taking any antihistamines, I would suggest doing a 2 week trial and see if you feel less inflamed and less pain.