What skin conditions is povidone-iodine suitable for?

Povidone-iodine is a commonly used disinfectant that is applicable to various skin conditions. Specifically, povidone-iodine is suitable for the following skin diseases: 1. Dermatitis: Povidone-iodine has broad-spectrum antimicrobial properties and can kill bacteria and other microorganisms, thus aiding in the treatment of dermatitis. Dermatitis refers generally to various types of skin inflammation, which have complex and diverse causes. Povidone-iodine can assist in managing symptoms such as papules and vesicles resulting from such inflammation. 2. Athlete's foot (tinea pedis): This is a fungal infection of the feet caused by dermatophytes. Since povidone-iodine has certain fungicidal effects, it can help alleviate athlete's foot. 3. Onychomycosis (tinea unguium): In clinical practice, a 3%–5% povidone-iodine solution is commonly used to soak affected nails, inhibiting the growth and reproduction of fungi on the nail surface and thereby achieving therapeutic effects.