Tinea capitis is an infectious disease of axillary and pubic hairs caused by Corynebacterium ciliatum. It can be cured by general treatment and medication, but if it continues to be in a hot and humid environment, it may lead to recurrence of tinea capitis. 1. General treatment: shave the affected armpit and pubic hair, keep the local hygiene clean and dry; pay attention to the local ventilation of the armpit and perineum, wear loose and breathable clothes to reduce the local friction; don’t scratch the affected area, avoid sharing bathing products with other people, so as not to lead to infection; the towel and personal clothing can be used to wash with boiling water, and put them under the sun. 2. Drug treatment: patients need to carry out antibacterial treatment, such as the use of clindamycin, erythromycin, 5% sulfur cream local smear, in order to achieve antibacterial effect; serious cases need to oral erythromycin and other drugs for systemic treatment. It is recommended that patients with armpit hair ringworm seek medical attention in a timely manner, follow the doctor’s instructions for treatment, and avoid private medication, so as not to delay the condition.