A Relative Has Been Ill For Over 2 Weeks Now.

A relative has been ill for over 2 weeks now. Symptoms include fatigue, shortness of breath, hives, His family doctor hs done no blood work at all. He was told to take ibruprofen for pain and is on his second round of steroids. He has been told to rest and has not been to work now for 2 weeks. His doctor thought he had a reaction to Lipitor he recently started. He is not taking it anymore but still feels weak and awful. what type f specialist should he see as his family doctor has no idea what is wrong.