I am on Plavix after a June 2015 heart attack and stent (1) procedure. Developed a rash in September, treated with 2 separate rounds of prednisone which lessened it, but not cured. Dermatologist now diagnoses Bullous dermititis and prescribed mycophenolate 500 mg/ 3x day. I am 86 and am concerned about taking a strong anti-immune drug. There were no cautions/restrictions conveyed by the prescribing physician, but shouldn t I be care about crowds and such? Advice, please.