My 11 year old daughter has fever,vomiting and if she eats,drinks or takes any medicine ,she vomits it back up,,help,,what do i do?

Gastroenteritis: 24 hours of clear fluids, small amounts at a time. These can be gatorade, flat ginger ale, flat coke, clear chicken broth, jello. Do not give any solids or dairy products. If the fever is high or she feels uncomfortable and cant keep down fever reducers with small amt of liquid, you can buy acetaminophen suppositories.

See a doctor: If unable to hold down any amount of liquid, dehydration will soon set in. Fever may be just from a virus, but could indicate a serious problem. An urgent medical evaluation is recommended.

Gastroenteritis: Fever and vomiting are often caused by gastroenteritis viruses. Some children will have diarrhea later. Keeping hydrated and monitoring for pain are the most important things. Try sips of water or an electrolyte solution like Gatorade. Make sure that she is urinating 4-6 times per day. If she cannot stay hydrated or if she has severe headache or belly pain, you should call your doctor for help.