This is what Web Md said about feers and when to see a doctor.http://www.emedicinehealth.com/fever...Medical%20Care
When to call the doctor
A fever has many possible causes. Most commonly, a fever is part of a virus that will go away on its own.
* Call the doctor if any of these conditions exists.
o If the temperature is 104Â°F or greater
o If the fever lasts more than 7 days
o If the symptoms get worse
* Call the doctor immediately if any of the following symptoms occur with the fever.
o Confusion or excessive sleepiness
o Stiff neck
o Severe headache
o Sore throat
o Chest pain
o Trouble breathing
o Repeated vomiting
o Abdominal pain
o Blood in stool
o Pain with urination
o Leg swelling
o Red, hot, or swollen area of skin
* People with serious medical illnesses, such as cancer or HIV, may not show these warning signs. Mild symptoms should be discussed with the doctor before they can progress into a serious infection.
When to go to the hospital
Certain illnesses that occur with a fever can be life threatening. Under these conditions, the person should go immediately to a hospital's emergency department.
* Meningitis is life threatening and highly contagious if caused by certain bacteria. If a person has the combination of a fever, severe headache, and stiff neck, he or she should be taken to the emergency department immediately.
* A person with difficulty breathing or chest pain and a fever should go immediately to the emergency department or call for emergency medical transport.
* If a person has a fever and blood in the stool, urine, or mucus, he or she should seek emergency medical help.
* A person who has a fever and is very agitated or confused with no obvious reason should be transported to the emergency department.
* Any person whose immune system is weakened (for example, people with cancer or AIDS) should call their doctor or go to the emergency department immediately if a fever develops. (See special medical conditions.)
* Hyperthermia is an emergency. Call for emergency medical transport if a person has a temperature greater than 104Â°F, is confused, or is not responding.