Use bottles with nipples that help to prevent aerophagy i.e ingestion or intake of air while sucking. Dr brown's bottle and philips avent natural bottles are very helpful. Whatever the brand be, it should specifically mention about being anti-colic and bpa free. These bottles are designed in such a way that the walls of the bottle itself dissolves the formed air bubbles while shaking the bottle or even those created by the baby upon sucking. The bottles should be cleaned and sterilised after each feed using baby liquid bottle cleansers. After using mee mee, pigeon and luvlap i finalized luvlap cleanser for further use. After cleansing, sterilise the bottle in boiling water. Boil water for 5 mins, remove the dish from flame or induction and then add the bottle in boiling water. Take extra care to clean the tip of the nipple. The silicone tip of the nipple should look completely; transparent after cleansing and sterilising. Prepare the formula in a clean and clutter free space with clean hands. Make sure that the prepared formula is lump free as well as bubble free before feeding. The temperature of the formula should also be checked and it should be just lukewarm, it shouldn't be hot at all.