Baby development Baby How to change your baby's nappy Follow our step-by-step guide and you won't go wrong 1 of Ad break Step 1Have to hand a clean nappy, cotton wool, warm water, and a small towel Step 2Unfasten the nappy, if there's a poo, wipe most of it away with the nappy first - if it's a boy, keep the nappy over his penis to avoid spray in your face! Step 3Clean the front area with cotton wool and water, before lifting your baby's legs and cleaning his buttocks Step 4Pat his bottom completely dry with the towel, then fasten the new nappy Continue slideshow > Step 5Change his nappy every three hours and every time he does a poo. If he gets nappy rash, only use cotton wool and water (advisable anyway in the first few weeks), leave your baby with his nappy off for a few minutes at intervals during the day and use a cream, such as Sudocrem By Babyexpert.com Last updated on 20 July 2009 Comments Latest on MadeForMums 2018's celebrity babies - who gave birth this year? Which pregnant celebs are due in 2018? Izzy Judd reveals the BEST pram accessory husband Harry bought her Is wearing a baby carrier 'emasculating' for dads?