Red dots with itching on the body, the more you scratch the more, consider eczema, contact dermatitis, drug rash, etc., you can choose topical drugs, oral medication, daily protection and other ways of treatment. 1. Topical medication: Glycerite lotion can be applied to relieve itching, if itching is more severe, sebaceous steroid ointment can be added for external use, such as halometasone, fluticasone propionate, and so on. 2. Oral medication: Oral anti-allergic drugs can be used to relieve symptoms, and second-generation antihistamines can be used, such as cetirizine, loratadine and so on. 3. Daily protection: keep the affected area clean, avoid sunlight and contact with suspected allergenic substances, and avoid re-exposure to the drug if it is caused by the drug. The above drugs should be taken under the guidance of a physician, it is recommended that patients go to the hospital in a timely manner, to clarify the condition of the medication, to avoid delaying the condition.