Option 1: Change the shape and size of the bottle. For some babies, it may be that the shape, size and material of the bottle cause them to refuse to drink milk. Therefore, parents can try to buy different types of bottles and let their babies try them to find the one that suits them. Of course, if your baby has requirements for the hardness and material of the bottle, it is recommended to choose a silicone or latex bottle. In addition, when choosing a pacifier, it is recommended to choose a nipple with a smaller flow rate.