The whole body dry skin and itchy, generally considered as pruritus, is a dry climate with a clear relationship between the itchy disease, mainly with the fall and winter seasonal changes, ultraviolet light is stronger, as well as neurodermatitis, seborrheic dermatitis, psoriasis and other disease factors, need to be dealt with: First, environmental factors: 1, fall and winter seasonal changes: lead to skin dehydration, causing normal skin breakout phenomenon, can be accompanied by itchy skin; 2, ultraviolet light is stronger: such as summer is too hot, repair the skin barrier, fluticasone propionate cream, etc., to improve the dry state of skin. Can be accompanied by skin itching, need to follow the doctor’s instructions for external use of skin barrier repair cream, fluticasone propionate cream, etc., to repair the skin barrier, improve the dry skin state; 2, ultraviolet radiation is strong: such as summer is too hot, long time outdoor sun exposure is easy to cause skin redness, swelling, breakouts, itching and other symptoms, can reduce the number of times you go out to avoid excessive sun exposure time, go out and wear a sunscreen or physical sunscreen. The second is the disease factors. Second, the disease factors: 1, neurodermatitis: etiology and pathogenesis is not clear, generally believed to be related to the cerebral cortex excitation and inhibition dysfunction, infected foci, mental stress and scratching, drinking alcohol and so on can promote the disease, the performance of the lesions at the dry, itchy, there can be a fine flaking, bursting the skin phenomenon. Need to follow the doctor’s instructions to take anti-allergic drugs, such as cetirizine; 2, seborrheic dermatitis: often caused by a lack of vitamins or sun exposure and other factors, can be supplemented with vitamins under the guidance of a doctor to avoid prolonged exposure to sunlight; 3, psoriasis of the common type: the specific cause is still unclear, and is considered to be mostly associated with the body’s immune system. At present, it is believed that it is triggered by the interaction between genetic factors and environmental factors, and the skin lesions can appear flaky red plaques, accompanied by itching, burning or pain, and the surface of the skin has silvery-white scales, which is similar to the performance of the skin bursting. Treatment varies depending on the cause, severity, and type of disease. Treatment mainly includes topical or oral medication, traditional Chinese medicine treatment, etc. Patients need to go to the hospital, and the doctor will give appropriate treatment according to the specific condition. During the period of medication, pay attention to a light diet, avoid eating stimulating food, prohibit smoking and alcohol, avoid staying up late.