I Have Two Daughters. 3 Yrs Old N 1-n-a-half-year Old.

I have two daughters. 3 yrs old n 1-n-a-half-year old. Both r sufferin with dehydration since last one week. I gave first bacigyl-n den changed to walamycin n den to OFM syrup. I preferred Darolac sachets n also econorm sachets frequently. Still no change or recovery. Plz suggest me medicine for loose stools. How shall i control it. My kids r not having prope food due to motions n stomach ache.