Children who fall and bruise their arms should be disinfected in a timely manner for only minor injuries. When the injury is combined with infection, it should also be treated with anti-infection drugs. Children fall arm abrasion, may make the local broken skin, oozing, pain and other symptoms, if the lesion area is small, the symptoms are not obvious, you can use iodophor solution to disinfect the local treatment. After the arm abrasion, not timely treatment, infection, should also use anti-infection drugs for treatment, such as cefdinir, amoxicillin, etc., to control the infection, to avoid the infection continues to aggravate. When using medication, parents must listen to the doctor’s guidance, safe and reasonable to the child’s medication, to avoid improper use of drugs caused by adverse reactions.