Ringworm itch may be caused by the inflammatory reaction caused by fungal infection of the skin stratum corneum. 1. Behind jock itch is fungal infection such as Trichophyton, Microsporum or Epidermolysis bullosa. When the inflammatory reaction caused by fungal infection of the cuticle of the skin, jock itch is prone to occur, especially in the environment where the weather is humid and hot and stuffy, especially common. When the patient’s immunity is reduced, patients with chronic diseases such as diabetes, etc., are also more prone to ringworm. 2. It is important to note that because ringworm is contagious, try to avoid contacting the patient or infecting others. Normally, you should develop good hygiene habits, such as keeping the skin clean and dry, changing clothes and bedding frequently. 3. In addition, in public spaces such as hotels and swimming pools, you should avoid using public slippers and bath towels, and use disposable slippers and towels as much as possible to prevent cross-infection. If the patient has the symptom of itchy ringworm, or the symptom persists and does not get better, should go to the hospital in time to consult the doctor for treatment.