It's hard to know whether probiotics would provide help for any of your daughter's specific issues, but I will say the following about probiotics in general. These beneficial bacteria are known to support the overall health of the digestive tract lining (specifically the colon lining) by producing nourishing short chain fatty acids. Probiotics have also been shown in studies to beneficially affect immunity, overall digestive system balance, regularity and occasional irritable bowel symptoms among other conditions/issues. The average American does not consume live beneficial bacteria on a daily basis in the form of homemade, fermented foods such as yogurt, kefir, saurkraut, etc. and therefore is generally deficient in probiotics, causing an imbalance in the gut flora known as dysbiosis.

So given the capabilities of probiotics and how they benefit the body as a whole, I would say that supplementation would be worth a try. If it's her first time trying a probiotic, you may want to consider starting at a lower potency and slowly working your way up to a 50 Billion formula or higher. 

Check out more on probiotics by visiting our learning center and feel free to also search through http://www.probiotic-research.com for specific studies on probiotics.

Thanks and good luck!