Itchy bumps like mosquito bags may be caused by insect bite dermatitis, urticaria, contact dermatitis, etc., according to the cause of targeted treatment. 1. insect bite dermatitis: mostly caused by mites, mosquitoes and other insect bites, lesions manifested as local bruises, papules, blisters, etc., can be used under the guidance of a doctor, such as glucocorticosteroid drugs such as Dinocap cream, oral antihistamines such as loratadine. 2. Urticaria: mostly triggered by allergic reactions, you can use levocetirizine, olopatadine and other antihistamines to treat, and at the same time, external glycerine lotion, etc., with anti-itching, redness and swelling, anti-allergic effect. 3. Contact dermatitis: mostly for contact with irritating substances triggered by the rash, the need to find sensitizing substances in a timely manner, can be used externally with glycerine lotion and glucocorticoid drugs such as halomethasone, along with oral vitamin C and so on. Itchy pimples like mosquito bags may have other reasons, it is recommended to the hospital in a timely manner, a clear diagnosis, follow the doctor’s instructions standardized treatment.