Question
How to handle the issue of a baby coughing while switching nipples?
Answer
Based on your description, your baby is four months old and has a normal weight. For the issue of your baby coughing while switching nipples, it is recommended that you regularly sterilize the nipples and bottles. Even if the nipples have been used for more than three months, as long as there is no rust or damage, regular sterilization can still be continued.