Small bumps on the body and itchy may be related to hives, mosquito bites, scabies and other causes. Symptoms can be relieved by taking oral antihistamines, applying topical glucocorticoid ointment, antibacterial and insecticidal ointment and so on. 1. Urticaria: Patients who are prone to allergies may suffer from urticaria due to contact with allergens, such as pollen, animal fur, etc., which causes urticaria to flare up, making small bumps and itching on the body. At the same time away from allergens, you can take oral antihistamines to improve symptoms and relieve itching, such as cetirizine hydrochloride tablets, loratadine tablets and so on. 2. Mosquito bites: may be due to mosquito bites lead to small bumps and itchy, can be applied externally glucocorticoid ointment to improve the symptoms and relieve itching, such as compound dexamethasone ointment, mometasone furoate ointment, and so on. 3. Scabies: It is an infectious disease caused by human scabies mites parasitizing the skin, which can lead to small bumps and itching. You can apply antibacterial insecticidal ointment to improve the symptoms and relieve itching, such as sulfur ointment. It is recommended that patients go to the hospital in a timely manner, to clarify the cause of the standardized treatment, specific drugs need to be used under the guidance of a doctor.