Has anyone ever experienced a rash or hives that itch when you've upped your dosage of levothroxine? It started with my hands having hives and a rash which they were also VERY dry. Then I stopped taking 75mcg and went back down to taking 50 much Levo for a week and the rash on my hands went down tremendously. I started taking 75 much about 4 days ago and now I've got an itchy rash and hives starting on my thighs and legs, along with the back of my arms it seems. Has anyone expeirenced this same thing when your doctor ups your dosage?