Small pimples on the body the more you scratch the more itchy and spread may be insect bite dermatitis, eczema, hives, etc., usually need to clarify the cause of the disease from the daily care as well as medication to improve. 1. Daily care: usually do a good job of protection, to avoid mosquito bites; do a good job of local skin moisturizing, especially in the fall and winter seasons, as well as limb parts, to avoid the skin by the hot and cold, itching and other intense stimulation; also avoid contact with suspected allergenic substances, if there is fever, cough, diarrhea and other infectious diseases, need to be timely treatment of anti-infectious to avoid infectious urticaria. 2. medication: for insect bite dermatitis or eczema, if the rash is heavier, itching is obvious, can be used externally with hormone ointment, such as dinexed cream, mometasone furoate ointment, etc.; hives, more commonly used for oral antihistamines, such as chlortetracycline, cetirizine, etc., but be sure to strictly comply with the doctor’s instructions for the use of medication, do not use their own. Small pimples on the body the more you scratch the more itchy and spread need to pay attention to observation, need to go to the regular hospital in time, let the professional doctor to deal with, so as not to delay the condition.