hello, Doctor I have been breaking out in welts and hive for the last three years. I break out with these welts when I get upset or anxious.  I have been to an dermatologist and he recommended an antihistamine (Zyrtec) which I have been taking for the last three years. Im worried its something more serious should I be worried.Nicole
Hello Nicole, Thank you for asking at Chat Doctor. I went through your history and would like to make suggestions for you as follows