Hello, what did you do for constipation in your baby? My child has bee…

Hello, what did you do for constipation in your baby? My child has been wanting to "go" for two days now, he's squirming and crying but can't go, I read that it's normal for babies to not go potty for some time, but what should I do if he starts crying out of this... I massage him, I also put pressure on his belly Sometimes he manages to have a bowel movement We're breastfeeding but twice a day I give him "Nutrilac Lactic Acid Milk" mixture.