The causes of itchy but asymptomatic body include physiological factors and disease factors such as dry syndrome, neuritis, pruritus, etc. Disease treatment drugs include cyclophosphamide, cyclosporine, vitamin B1, B6, loratadine and so on. 1. Physiological factors: if the dry climate triggered by itchy skin, this is a physiological phenomenon, pay attention to moisturizing the itchy symptoms can be improved. 2. Dry syndrome: If the itch is caused by immune factors, then you can give cyclophosphamide, cyclosporine and other drugs anti-immune treatment. 3. Neuritis: if the inflammatory lesions of the nerves are caused by various factors, vitamin B1, B6 and other drugs can be given to nourish the nerves. 4. Pruritus: Pruritus is mainly manifested as itching of the skin, but there is no obvious rash of the disease, can be under the guidance of the doctor oral antihistamine drugs such as loratadine, cetirizine and other treatment. It is recommended that the phenomenon of itchy but asymptomatic phenomenon in time to seek medical attention, clear cause of the symptomatic treatment, the above drugs please follow the doctor’s instructions.