Betaderm 0.05 Lotion is a topical medication used to treat skin conditions like psoriasis, eczema, and dermatitis. It contains betamethasone valerate as the active ingredient, which is a potent steroid medication that reduces inflammation, swelling, redness, and itching associated with skin conditions. The lotion is applied to the affected area of the skin once or twice a day, as directed by a doctor. It is important to follow the instructions carefully and not to use more than the prescribed amount or for longer than the recommended duration, as prolonged use of steroids can lead to side effects like thinning of the skin, stretch marks, and increased risk of infection.