BETARV Cream (Betamethasone 0.05%) is a corticosteroid used to relieve redness, itching, swelling, and discomfort from inflammatory skin conditions like eczema, dermatitis, and psoriasis, by reducing inflammation and narrowing blood vessels. It's applied thinly to affected areas as directed by a doctor and shouldn't be used on the face, groin, or underarms without medical advice due to potential skin thinning.