Child sick for 3 days. vomiting, diarrhea, and fever. now a sudden rash has developed on arms/legs. what could it be? she is 3. the rash is red.

Enterovirus: There is a large family of viruses that tend to like attacking the stomach and intestines causing vomiting & diarrhea. Toward the end of their process they often have a final phase marked by a speckled red rash on the body.As long as the kis stays hydrated, most of these can be monitored at home and self heal. The rash will likely fade in a few days to a week.