I had 2 kids with colic. 1 lasted 6 mos. Is the little one bottle fed? Check the formula if she is and read the ingredients. Some babies are sensitive to milk or soy. If it is milk based, try soy and the other way around too. My daughter is allergic to soy and it was in her formula. Once we changed, she was alot better. My son had no allergies but we changed from Enfamil to carnation and the problem was instantly solved. If she is breast fed, I dunno. Doctors don't know much about colic. Try Dr. Browns brand of bottles too. Good luck!