Hi, good morning doctor, my baby Meevan is 5months 28days old. I hdd started cow Milk to h 1week before but he faced seems constipation, his stool become so hard and blood was laso coming. so I he stoped cow milk and again started formula Milk, since breast milk gone stopped from 4months. so pls let me know now when I can start cow Milk to him and formula Milk till how many months?