i would recommend u to get her stool examination to find out the cause for her continuous loose motions. keep her well hydrated withe ORS
signs- dry mouth
dry eyes dry skin
decreased urine out put. avoid sweet foods , avoid deep fried foods, avoid bakery products, u can give her rice based foods- dal kichri, ganji, tender coconut water,oats , ect, but i wud recommend u to review with your doctor once more.