Chamomile tea for newborn??

I come from a Mexican family were there’s a lot of “home remedies”. My baby is 3 weeks old and has a lot of colics & gas. Everyone keeps suggesting I give her té de manzanilla (chamomile tea) but I don’t know if I should. Have you ever heard of this?

I just want to help my baby, every time she eat she cries cause her little belly hurts 😭

Ps I already tried giving her gripe water but it didn’t seem to help.