What should I do if my child bites the nipple? When this happens, you can clean it with hydrogen peroxide. Because the microorganisms in the baby’s mouth may affect the healing of the wound, it is advisable to sterilize it with hydrogen peroxide every time your child is done with the milk. Hydrogen peroxide is very safe and inexpensive. There is also the control of the baby’s milk time, each feeding time is not too long, generally also 15-20 minutes is appropriate, and do not let the child sleep with the nipple, you can change the position of the baby’s hold when breastfeeding. Stop using alkaline soaps, detergents or applying medicated oils when washing the nipples. Change the way of feeding to improve the baby’s sucking position and continue to breastfeed the baby, you can start with the breast on the side that is not painful. When the feeding position is changed, the pain usually improves immediately and the crack heals quickly. Expose the affected nipple to sunlight or air as much as possible during breastfeeding. It is a good idea to leave a drop of milk on after each feeding to help the nipple skin heal. Medication is also available, which can be applied with erythromycin or 10% cod liver oil. It is important to pay attention to personal hygiene during the day so that the child does not get an oral infection.