My hair has been falling out and is noticably thin on top. Only ...

My hair has been falling out and is noticably thin on top. Only took the wellbutrin for 3 months , but have lost lots of hair. Have also had a severe rash/hives on my arms and legs, it tingles and burns. Have went to the ER once already because of the hives. Stopped the wellbutrin and the hives and itching went away. But what concerns me the most is the hair loss. Will it grow back? Wish I had know about these side effects before taking the it. I am hoping that there is another medication I can take to go along with my effexor as the wellbutrin did help my depression. Does anyone know any other medication might possibly work with effexor, that won't make me gain weight, grow bald or be miserable with itching? Help!