Tinea capitis is caused by a fungal infection and has a low chance of healing on its own. If the disease is not treated with medication, it will worsen, expand in size and increase in number. The disease tends to appear in the summer, and people who sweat a lot and have a fat body type have a relatively high chance of getting the disease. It starts as a red papule or blister on the skin with a clear border and the surrounding normal skin, and the middle skin heals itself and spreads to the surrounding area. If the thickening of the surrounding skin is severe, the affected area is rubbed with tincture of hibiscus tincture or tincture of compound salicylic acid, while the surrounding skin is only red, swollen, and flaky, and there are no symptoms of skin leathering. The skin should be clean, bathed and changed regularly to keep the skin clean and dry, and bedding should be exposed to the sun for a long time, and the clothes of infectious patients should be separated from those of other people to prevent infection.