Change to "reduction of colic" bottles (NUK makes some good ones), some women's breast shapes mean that the babies don't get the full "airtight" latch which means they can swallow more air so switching to expressing to bottle feed can help.
Infacol and other wind concoctions from a pharmacy to get rid of what wind the baby has.
A ride in the car or a pushin a buggy can get it all jiggled up as well!
Normally you have to go to the source rather than treat the symptoms to stop it. Also some babies have gastric reflux that can present as colic, get her to check her symptoms at the
Crying Over Spilt Milk Website.
I hope that your friends baby can feel better soon!