How many times do we need to sterilize feeding bottle of babies? Is it to be done each time he/she drinks milk from it or only once in a day

A. Each time. You should wash the bottle with a bottle cleaning liquid and sterilise it ( in boiling water or use a steriliser) after every use definitely otherwise baby may get bottle infection. You should change the nipple whenever you see a wear or tear or when the nipple changes color or in two to three months whichever is the earliest. You should change the bottle if u notice a crack or discoloration or once in every four to six months again whichever is the earliest.