To the summer face itching, may be related to physiological factors, may also be due to solar dermatitis, contact dermatitis, seborrheic dermatitis and other causes. 1. Physiological factors: in the hot summer, due to the dry air, if you do not pay attention to the moisturizing care of the face skin, resulting in dry and dehydrated face skin, it may cause a slight itchy face. 2. Solar dermatitis: in the summer if you do not pay attention to sunscreen, resulting in the face of the skin for a long time by strong ultraviolet radiation, may induce solar dermatitis, thus causing the face itchy, but also can be accompanied by localized skin redness, burning and other manifestations. 3. Contact dermatitis: common in allergic people, in the hot summer, if the face of the use of cosmetics allergies, or contact with pollen, animal hair and other substances, is likely to cause contact dermatitis, may cause the face itchy, but also can be accompanied by local erythema, pain and other manifestations. 4. Seborrheic dermatitis: mostly considered may be due to infection, drug factors, mental stress, etc., good in the head, face, armpits, chest and other parts of the body, when occurring in the face, may cause the face itchy, especially in the hot summer incidence is higher. In the summer face itching, exclude physiological factors, it is recommended to consult a doctor as soon as possible, after clarifying the cause, to give targeted treatment.