ALL children up-to the age of 8 years WILL fall sick 5-6 times ahead,it's NORMAL!! This is due to less immunity as compared to adults,which develops slowly over a period of time by repeated,minor infections. All you can do is give her a healthy balanced diet including curd and Banana in the diet in addition to whatever you prepare at home. Give just 2 top milk feeds using a glass,stop bottle feeding and breastfeeding if given and give 3-4 solid meals a day. Ensure strict hygiene in feeds.