Itchy body first need to clarify the cause of itching, and then the cause of treatment, in order to quickly and effectively stop itching. 1. Allergic dermatitis, urticaria, drug allergies caused by drug rash and other allergic skin diseases caused by itching, first of all, we must actively search for allergens, and then try to avoid contact with allergens, and then you can take anti-allergy drugs such as loratadine, cetirizine, etc.. 2. Non-allergic skin diseases can also cause itchy body, such as fungal infection caused by ringworm, need to actively antifungal treatment, such as terbinafine, miconazole, etc.; psoriasis can also cause itchy body, need to use topical glucocorticoid ointment symptomatic treatment. 3. Poor glycemic control of diabetic people will also appear body itching, need to actively control blood sugar in the normal range to effectively stop itching. 4. Liver function abnormality leads to bilirubin stagnation or even jaundice, and itchy body will also occur, need to actively improve liver function, clear the cause of liver function abnormality after active treatment. 5. Malignant tumors, dry syndrome and other connective tissue diseases can cause itchy body, need to actively treat the original disease. When frequent itching occurs, you need to consult a doctor in time, under the guidance of the doctor to clarify the cause of the disease, reasonable treatment.