My baby has completed 6 months and was only having breast milk. Today we have given formula milk of about 120 mL at a time. After 3 hrs he is vomiting thrice. Is there is any mistake.

A. So that’s okay maybe you introduce formula for the first time the body is accepting time to digest it which is completely normal so just give it the same way and see if your child is able to accept it over the period because the child takes time to digest formula give stage one not stage two