There are many solutions for a 3-month-old baby who does not eat formula, you can choose the right bottle, pacifier, create a good milk eating environment for your baby, etc. Pay attention to find the reasons why the baby does not eat milk powder, and then give the appropriate treatment according to the reasons: 1, choose the right bottle, pacifier: If the 3-month-old baby has been exclusively breastfed, now change to milk powder feeding, the baby does not eat milk powder, the first thing you should do is to choose the right bottle, pacifier for the child, try to choose a pacifier that imitates the nipple, soft material, milk hole size is appropriate, while choosing the taste and breast milk taste close to milk powder, the baby may gradually accept milk powder feeding; 2, add the original milk powder: 3 months of age, if the baby does not love milk because of the recent replacement of milk powder, you can add the original milk powder to the new milk powder, gradually reduce the amount of the original milk powder added, increase the amount of new milk powder, so that the baby gradually adapt to the new milk powder; 3, create a good environment: the baby did not replace the milk powder, but suddenly at 3 months of age to eat milk powder is not as The original good, pay attention to whether the baby has entered a physiological anorexia period. When you give your baby formula, try to create a quiet, simple and comfortable environment to avoid distractions when your baby eats formula and improve the situation of your baby not eating formula; 4, check for diseases: 3 months old baby does not eat formula, it may also be a manifestation of the baby’s physical discomfort, such as ulcers in the baby’s mouth, bloating, indigestion, etc. Parents need to pay attention to the situation where the baby does not eat milk powder, they should carefully observe the situation in the baby’s mouth, there is no crying symptoms, serious symptoms should be promptly sought medical attention, follow medical advice to give drug treatment.