What is triamcinolone acetonide lotion?

Triamcinolone acetonide lotion is a topical (applied to skin) prescription medication used to treat skin irritation and inflammation. It (a member of the corticosteroid -- or steroid -- group of drugs) provides relief from skin redness, itching, swelling and dryness. These symptoms may be caused by a variety of conditions, including allergic rashes, eczema, psoriasis and dermatitis. Triamcinolone acetonide lotion works by decreasing the chemicals in your body that cause irritation and swelling.