“Is Pedialyte good for toddlers with a fever?”

Pedialyte was created as a way to prevent dehydration from diarrhea. It is a physiologic mixture of sugar, salt, water, and other trace minerals called "electrolytes." It preceded "sports drinks," which are similar, but are commercialized and not as scientific. It's not "dangerous" to give Pedialyte to a toddler, but it tastes odd, and s/he may not want to drink it. It's also expensive. Plain water is all that children need to drink.