It may take some trial and error, because what helps one colicky baby might not do anything for another. But there are things you can try to help soothe your baby. Some will work best if tummy trouble is the issue, while others will be more helpful if your baby needs reassurance.
1. Check the bottle
The nipple should have a hole that's not too small, which could frustrate him and make him gulp for more food, or too large, which would cause the liquid to come at him too quickly.
Some bottles are specially designed to reduce air intake. Some are curved, while others have internal vents or liners, which prevent air bubbles from forming in the liquid and keep the nipple from collapsing.
[Source: babycenter.com]