Hi All. I am new to this board. I was recently diagnosed with Hyperthyroidism about 4 weeks ago. Subtle symptoms since this past February. My PCP wanted me to jump right into RAI, but I got a second opinion from an Endo. We started Methimazole 3 weeks ago, and just last night I broke out into a localized rash (hands, scalp, face, and neck) only. Im very disappointed because I was feeling so much better these last couple of weeks and really positive about the drug treatment. Has this happened to anyone else?