A child waking up sick on a school morning can leave parents wondering what to do. Is a runny nose enough to keep them home? What about a fever, stomachache, or sore throat? And when is it time to have them seen by a medical provider? In general, children should stay home when they are too sick to participate in normal activities or may spread an illness to classmates. Fever, repeated vomiting, diarrhea, worsening respiratory ...