Giving your baby a mild soap bath 3 or 4 times a week will help to keep him or her clean and will help prevent skin rashes and chafing. A plain water bath may be given on the other days or if your baby is warm and sweaty. Bath time can be a fun time for you and your baby. It is a pleasant experience for baby to kick and move about without clothes on. It is a good time to talk to your baby and let him learn to make sounds and make eye contact with you. Skip to Content.