Itchy bumps may be caused by insect bites, eczema, psoriasis, etc., which can be improved through general treatment and medication. 1. Insect bite reaction: itchy bumps are considered to be related to insect bite reaction, the patient should keep the living environment clean, and can follow the doctor’s instructions to use hydrocortisone, trimethoprim and other glucocorticosteroid ointment, which has anti-inflammatory and anti-itching effect. 2. Eczema: eczema may cause big bumps on the body is very itchy, to identify the causative agent is the first measure, glucocorticoids have anti-inflammatory and anti-allergic as well as the role of itching, the patient should be coated with mometasone furoate, haldolone and other ointments under the guidance of the doctor. 3 psoriasis: if it is psoriasis, it can be manifested as scaly erythema fast, there will also be big bumps on the body is very itchy. At this time you need to give topical glucocorticoid ointment such as hydrocortisone butyrate, oral vitex such as Avian A, immunosuppressants such as methotrexate and other drugs. There are many reasons for the itchy big bumps on the body, and patients are advised to consult a doctor for examination to clarify the cause and choose the appropriate treatment under the guidance of the doctor. Medications should be used as prescribed by the doctor.