Many years ago I heard my mother's friend Ruth telling us that she gave her baby a little bit of anis tea. Anis expells gas as does fennel and may work well. If colic is an on going problem it could be something in the mother's diet(if she is breast feeding) or something in the baby's diet that is causing it.
If you go to this website: www.sueatsmartmomsnetwork.com and click on the "Meet Dr. George" button on top you will come to the biography page of Dr. George Wootan MD. Click the health talks link under his photo and you will be taken to a site where you can listen for free to an audio lecture on children's health. In this lecture, Dr. George (a holistic MD)addresses the subject of colic,with some tips which are more complex than can be answered here. Hope this is helpful. - Susan