My daughter is 3 months 6 day's old she's completely on breast milk, when she was 1.5 months old she used to drink formula twice a day but later on our pediatric switched to lactogen from emphamil which she consumed for a week and she got constipated, now she is only on breast feeding and does not take any formula milk. Which is very difficult for me to take her out. any suggestions as to how to make her adapt to formula twice once or twice a day.