My baby is 2 weeks and a day old, she is having stomach bite. What's the cause and what drugs should I give to her?
Your baby is probably having colic, it should resolve on its own without any treatment. It usually starts a few weeks after birth and often improves by age 3 months. By ages 4 to 5 months, the majority of babies with colic have improved.

You may however give infacol for relief, but note that it does not work for every baby.