Children itch a lot, common causes include eczema, urticaria, contact dermatitis and so on. 1. Eczema: when the child’s immune function is low or in a humid environment, it is easy to appear eczema, at this time there will be itchy skin performance, the degree of itching varies, if it is acute eczema, usually itchy and intense. It is recommended to improve the child’s immunity, improve the humidity of the environment. 2. Urticaria: If the child himself is allergic, after eating allergic food or contact with dust and other allergens, it is easy to lead to the occurrence of urticaria, so there will be always itchy performance, sometimes itching symptoms are also very strong. It is recommended to avoid contact with allergy-inducing foods and get rid of allergens in time. 3. Contact dermatitis: usually due to the child’s skin contact with exogenous substances, is the skin caused by irritation or trigger an allergic reaction. Often lead to the child self-conscious itching, burning, swelling and pain and other symptoms, but also red spots, pimples and other manifestations. If the child is very itchy, it is recommended to go to the regular hospital in a timely manner, to clarify the cause of the disease and targeted treatment.