Mylicon is non-digestible. It takes care of whatever the problem is and just passes on through. The generic is just as good as the name brand and less expensive.
You can try Baby Gripe water as well. You can get that at drugstore.com. I have heard that that will work if Mylicon drops don't. It depends on the baby and what the problem is.
If you lie down with your baby face down on your chest this will soothe the baby. Your warmth will calm the gas, plus the baby loves to listen to your heartbeat. A warm heating pad can also help.
If none of these things work, check with the pediatrician for GERD.
Good luck.