Hands feel hot and itchy may be due to sweat herpes, contact dermatitis, ringworm and so on. 1. Sweat herpes: mostly due to local allergies, dermatophyte infections or emotional tension, stress and other triggers sweat herpes. The main clinical manifestations are blisters on the hands or feet, intense itching, burning pain, etc., often recurring on a regular basis, more common in summer. 2. Contact dermatitis: allergic or irritant reaction caused by contact of the skin of the hands with certain sensitizing or irritating substances, of which chemical exogenous substances are the main cause, such as detergents, hair dyes, paints, gasoline and so on. The main symptoms are erythema, papules, blisters, itching, burning pain and so on. 3. Ringworm: it is a superficial fungal infectious dermatosis that occurs on the hands, often manifested as blisters, dryness, flaking, itching and other symptoms, treatment is based on antifungal infection. There may be other reasons for the hand hot itch, it is recommended to timely medical examination, clear diagnosis, follow the doctor’s instructions for symptomatic treatment.