I have been taking Arimidex for almost 2 years. Outside of hot-flashes, no other side-effects. About 3 weeks I got a rash or acne in a small area on my face. It now goes over my nose, on my upper lip and some on lower lip areas. Iam 57 and always had a good complection so I'm not sure if this is acne or a rash. Could this be caused by Arimidex?