Thank you both! I am back on 20 mg Methimazole but also still on prednisone and Benadryl. I see my endocrinologist tomorrow. Yes, I am allergic to both drugs. Since Methimazole worked better they decided to restart me on that. My concern is having a thyroidectomy. I do want this done but was told I needed to wait due to the iodine in the CT scan saturating my thyroid. It was 4 weeks ago though so I will see what my doc says. I also am worried because my heart rate is still high on Metoprolol 50 mg 3 times daily. It usually is around 90-100. Is this normal until I am regulated? Sorry, I am so scared. I am a veterinarian and I can’t even do surgery because of the hand tremors and my work had to be limited to 6 hours daily.