Is this symptom serious?

Lymphatic gastroenteritis is a common disease in children and is usually not serious. It is more serious if diarrhea and vomiting are severe and cause severe dehydration. Suggestion: Children need oral rehydration salts, which can reduce the chance of dehydration. Children can also take oral montmorillonite powder, which can regulate gastrointestinal function. If the disease is caused by bacterial infection, patients should also be treated with antibiotics.