My husband has had a rash since last Aug. when he had hip replacement. He has been to his MD, an Allergist, and his dermatologist. and oncologist. They checked for allergy to the hip metal, it was negative. Our PA daughter says is definitely an allergic reaction. He takes, Sinemet, Ropinorole,Metoprolol, Warfarin, Rampril, Fenobrate, Simvistatin, a muti vitamin and a stool softner. Dr s have not checked his meds.