Most fevers in children are viral in origin and take 3-7 days to subside completely. Use paracetamol for fever  and repeat every 4 hourly if required. Stop bottle feeding and breastfeeding,give just 2 milk feeds using a glass and 4 solid meals a day including curd and Banana in the diet. Give ors after every loose motion if watery and add syp vizylac twice a day for 5 days.