hey dear, as you mentioned your sister just delivered the bbaby, give healthy diet and plenty of rest she needs. And, colic doesnot happen due to formula milk or due to breastfeeding. it may happens due to gas. ask her to eat carom seeds daily with luke warm water. and as you told baby is on formula milk she can give Aptamil Gold stage 1, it contains all thr rewuired nutrients which needs for good growth and contains prebiotics and HMO's in it, which is there in mother's milk.recommending because i also give this to my baby and baby is getting complete nutrition and never faced digestive and constipation related issue.

You can ask your friend to feed the baby very often and then she can connect with a lactation professional who can help her with good latch correction

Hey, Since your sister just delivered, ask her to get plenty of rest. Adequate sleep is essential for recovery. Make sure she eats a balanced diet with plenty of fruits and vegetables. Now, I just want to assure you that colic doesn't happen due to formula or due to breastfeeding. It may occur due to gas issues. So, since the baby is formula fed, I would suggest you to go for formula that contains prebiotics and HMO's on it. You can try Aptamil Gold. It contains nutrients that are naturally present in human breastmilk. It improves immunity and helps in relieving colic... Make sure to consult your doctor before use.

Ask your sister to take the doctor's medicine on time and take care of herself. Rest is necessary after delivery. If the baby cannot digest formula milk, there is a possibility of gas, so choose a formula milk that contains HMO and prebiotics. Aptamil Gold is one formula milk known to have prebiotic and HMO's in it. Infact Aptamill Gold is the first formula in India which has prbiotics. It can also help strengthen immunity of baby. You can give it to your sister's child with doctor's advice. We pray that she gets well soon.