Athlete's foot and hand fungus are both caused by fungal infections. The nature of the fungus in these two diseases is essentially the same, and they can also repeatedly cross-infect each other. For example, hand fungus can spread to the feet forming athlete's foot, or athlete's foot can spread to the hands forming hand fungus. Once diagnosed, it is essential to seek timely treatment at the dermatology department of a regular hospital. Common antifungal creams can cure it, but the treatment course must be long. It is advisable to frequently wash with hot water, expose worn shoes to the sun, disinfect hands, and avoid contact with irritants, such as dirty water and soil. If you have pets at home, make sure to maintain good hygiene. Avoid wearing shared slippers and visiting public baths or swimming pools. If other people have this condition, it is recommended to treat it together.