Dehydration can make your sick child feel even worse. Use this solution rather than juices, soda, sports drinks or water, at the first sign of diarrhea and vomiting to help replace lost fluid and electrolytes. Quickly replaces fluid and electrolytes lost during diarrhea and vomiting to help prevent dehydration. Helps replenish the zinc lost during diarrhea. #1 pediatrician recommended brand.