Betnovate-C cream is a strong corticosteroid cream used to treat inflammatory skin conditions like eczema and psoriasis. It contains betamethasone valerate which reduces swelling and inflammation, and clioquinol which can prevent or treat bacterial or fungal skin infections. Common minor side effects include acne, itching, and increased hair growth, while major side effects like thinning of the skin or easy bruising require seeing a doctor immediately. The document suggests reducing the clioquinol content, replacing betamethasone with a milder steroid, providing clear usage instructions, and ensuring it is only used under doctor supervision.