Tinea cruris is caused by ringworm infection and treatment is mainly antifungal. It initially appears as flaky red patches on the roots of the thighs with a flaky, red rash and blisters on the surface, along with itching. With the development of the disease, the lesions can spread to the surrounding area. Commonly used treatment methods are as follows: 1. Antifungal treatment, under the guidance of the doctor ketoconazole lotion wash vulva, apply dacrynic ointment. In patients with severe symptoms where local medication is not effective, oral antifungal medications such as fluconazole and itraconazole can be considered.2. Patients with combined bacterial skin infections need to use a combination of antibiotic ointments.3. Chinese herbal medicine treatment, choosing herbs that have the ability to clear heat and detoxify the skin, remove moisture and relieve itching, and apply them internally and externally. It’s a good idea to take care of your skin and to share your toiletries with others to avoid spreading the disease. The patient should go to the dermatology department of a regular hospital to get a clear diagnosis before systematic treatment.