The child was bitten, if there is no damage to use water to clean it, if there is a slight skin damage, you can use iodine povidone to disinfect it, if there is a serious tear, it should be cleaned and sutured. After the child was bitten, the wound should be observed, if the wound is not broken, you can use water to clean it, if there is a slight skin damage, you can use iodine povidone to disinfect, wait for its own healing, if there is a serious laceration, you should go to the hospital in a timely manner, to be cleaned and sutured, tetanus vaccine injection, and so on. Daily need to pay attention to the wound clean and dry, to avoid water infection, at the same time to pay attention to the biter has no hepatitis B, hepatitis C and other infectious diseases, if carrying infectious diseases, should take appropriate preventive measures, and regular checkups.