Poster on the warning signs of dengue severity. Many people with dengue can be cared for at home with adequate rest and hydration. But go immediately to the nearest medical center if you live in a dengue-prone area, and a few days after getting sick with fever, you experience: a drop in body tempera...ture, accompanied by Intense abdominal pain, restlessness, bleeding gums, fatigue, drowsiness, blood in vomit, and persistent vomiting. more