Answer: Hello dear, Generally in this age it's very normal to baby have constipation. Don't worry you can do lots of things to remove it. First of all....
Increase Water Consumption
try giving her an additional 2-4 ounces (1/4-1/2 cup) of water after each feeding to help bowels flush properly. Start juice slowly with less than 2 ounces of juice after feedings.
Feed High-Fiber Foods
Bananas, rice cereal, carrots, and cheese are a mainstay of most infant diets--they also tend to have a binding effect on stool. Foods like apricots, pears, prunes, peaches, and plums are better choices to help avoid constipation.
Give Your Baby “Bicycle Legs
Lift up his legs and move them in a circular motion to mimic the motions of peddling a bicycle. The movement should help to release some abdominal pressure.
Try a Different Brand of Formula
try a few brands to find the one your baby tolerates best. Most brands have a low-lactose option, which your baby may tolerate better.
Massage Her Tummy
massage your baby’s tummy in ever bigger circles. Follow your baby’s cues as to how much pressure to use. If she fusses or cries, you’re pressing too hard.
Give bonnisan syrup 2.5 ml in the morning and evening for 3 to 4 days. It will help.
Hope it helped, Take care ur little one...