A High Fever may be caused by mumps, measles, meningitis, or any of a large number of other serious and not-so-serious diseases, the possibilities of which should be checked out by a doctor, as follows :

• Any child less than 6 months old with a fever should be examined by a doctor immediately, in order to either rule out a serious infection or begin treatment of the infection.
• People of any age who have a fever greater than 105°F (40.5°C) should seek medical attention, unless the fever and symptoms subside with treatment.
• Any child or person who has a fever and is very irritable, confused, has difficulty breathing, has a stiff neck, won’t move an arm or leg, or who has a seizure, or other serious symptoms should seek immediate medical attention.

In addition, if you or your child has any of the following symptoms :
• Convulsions.
• Any persistent or abnormal pain, such as abdominal pain, ear ache, pain while urinating, etc.
• Diarrhoea or vomiting.
• Any sort of rash.
• Laboured or rapid breathing.
• Listless and tired.
• Headache, with complaints of a sore neck or if they appear confused.

then seek immediate medical advice.