A high temperature scalp itch, may be heat contact urticaria or seborrheic dermatitis. 1. Thermal contact urticaria: When the skin on the head comes into contact with items of higher temperature, it is easy to induce thermal contact urticaria, especially for those with allergies. Thus, the hair itches when the temperature is high. 2. seborrheic dermatitis: if you suffer from seborrheic dermatitis, seborrheic overflow rises or sebum within the composition changes, the skin surface bacterial flora will appear out of order, manifested as skin inflammation, may be a high temperature, it will occur when the scalp itchy situation. If the temperature is high, the scalp itchy, it is recommended to closely observe their own situation, abnormalities, timely medical treatment, follow the doctor’s instructions for symptomatic intervention.