seborrhea really bad -Meds?

Help, For several weeks I've had the most terrible itchy and bumpy, flaky head, itchy ears and a slighty itchy grainy place on my eyelid I'm blaming one of the meds I'm taking but I've not narrowed it down. I've had a heart attack so I take Toprol xl,enalapril, coumadin, and 81mg. aspirin. I've also had breast cancer and I'm on Arimidex. Just recently I've started Lipitor. Anyone here who might have a clue, I'd be very appreciative.