Itchy pimples on the body may be caused by allergies, such as food and drug inhalation allergies, which can appear above, and contact with irritants can also cause pimples all over the body. Treatment can be oral anti-allergy drugs, commonly used are loratadine or cetirizine, local can be applied with glycerine lotion, can also be combined with Dinaid cream or hydrocortisone butyrate cream topical, in order to anti-inflammatory, anti-itching. When allergy, we should pay attention to avoid eating spicy, stimulating food, do not eat fish, shrimp and other allergy-prone hair and so on. Most of the allergies are related to the patient’s immune function disorders, patients should also pay attention to rest, avoid staying up all night.