Hey there!
I *thnk* a rash is lised as a serious side-effect of Tapazole (Methimazole). It could very well be an indication of an alergy. Probably best to talk to your doctor right away.
Be very alert and aware of any other allergic symptoms such as breathing difficulty, hives, swelling of the tongue and throat, fever, vomiting, and diarrhea.
Hopefully some others will chime in before too long but regardless- I think a call to your doctor is in order.
Hope you feel better right away. Let us know how things pan out okay?
Okay!
Good health to you,
Boomer
