My Dr. Rx'd triamcinolone cream 2x/day for poison ivy rash. Are there any side effects or is it usually well tolerated w/out any adverse effects?

Not really. This is a moderate potency steroid cream and little if any will penetrate the skin and effect your body. It can decrease the angry irritation of the rash and reduce itching. Many use it for that purpose.You may be able to get similar benefit from a product called IVY DRY sold OTC at many box stores.