My baby has bad gas what i should give her?

Baby Gas: Gas is normal, but if your baby is having abdominal pain, look for reasons that you can treat: if formula feeding, you can try a hypoallergenic formula; if nursing, take allergens like nuts and shellfish out of your diet. If you are having trouble burping her, try a gas drop (simethicone 0.3 ml) to help. If none of these help, see her doctor (check weight, ears, urine, etc).