Itchy feet can be caused by tinea pedis, herpes, eczema and other diseases. 1. Tinea pedis: Tinea pedis is mainly caused by the infection of causative organisms such as Trichophyton rubrum and Trichophyton mustelii, etc. Patients will have symptoms such as itching, increased peeling and cracking. In addition, patients with tinea pedis will also have symptoms such as erosion, oozing and pain. 2. Sweat herpes: the cause of sweat herpes is not yet completely clear, considering that it is caused by local allergies, dermatophyte infection and other factors. The patient’s main symptom is the appearance of intense itching blisters on the hands or feet, accompanied by tingling, burning sensation. 3. Eczema: Itching when feet are hot can also be considered to be related to eczema. For example, often wear breathable shoes, hot water scalding, intake of allergy-inducing food, resulting in inflammation of the superficial dermis and epidermis, can cause redness, swelling, itching, or the appearance of pimples, papules. Patients with itchy feet have other causes (such as urticaria, pruritus, etc.), and should seek medical attention in a timely manner and follow the doctor’s instructions for treatment.