Itchy body a scratch like mosquito bags are mostly considered to be due to urticaria, insect bite dermatitis and other diseases, need to target the disease, choose the appropriate drugs for treatment. 1. Urticaria: patients with severe itching can be treated with antihistamines, such as loratadine, cetirizine, etc.; if severe acute urticaria accompanied by angioedema, it should be dealt with immediately in an emergency. In addition, usually try to avoid triggering factors, reduce skin scratching. 2. Insect bite dermatitis: obvious itching symptoms, can be used externally to relieve itching agent treatment, such as glycerine lotion, zinc oxide ointment, etc.; itching serious, oral antihistamine treatment, such as cetirizine, loratadine, etc.; edema is significant, short-term use of glucocorticosteroid treatment, such as hydrocortisone, etc.; such as secondary bacterial infections, antibiotic treatment can be used, such as fusidic acid cream. Itchy body scratch like mosquito bags may be other reasons, it is recommended that patients promptly to the regular hospital dermatology department.