Feet that itch when it gets hot may be related to fungal infections and atopic dermatitis. Commonly used treatments include general treatment and medication. 1. General treatment: Sweaty feet on hot days and the metabolites in the sweat irritate the skin, causing itchy feet on hot days. This can be relieved by wearing comfortable and breathable socks and shoes and maintaining foot hygiene. 2. Medication: (1) Fungal infection: due to the invasion of pathogenic fungi into the feet, resulting in tinea pedis, the incidence of which is high in summer and can be characterized by intense itching. Ketoconazole, fluconazole and other ointments can be applied locally. Oral antifungal drugs such as terbinafine hydrochloride tablets can also be taken for treatment. (2) Allergic dermatitis: If the feet come into contact with allergic substances resulting in an inflammatory reaction that causes the feet to itch when it gets hot, it can be treated by applying glycerite lotion and topical glucocorticoid cream as prescribed by the doctor. Oral anti-allergy drugs such as loratadine tablets can also be taken. Itchy feet in hot weather after the general treatment is unsuccessful, should promptly consult the doctor, complete the relevant examination, the cause of the treatment. The above drugs should be used under the guidance of a doctor.