We have a Premature baby born in 7 Months. after 2.5 M, the baby is 1400 Grams. I want advice of Doctor.?

You need to discuss this with your child's pediatrician. If you do not have one, seek advice from the physician who took care of the baby in the hospital NICU. This is serious, and needs to be done within the next 24 hours. You will not get an answer based on your individual child's needs on this forum.