Flu season is now upon us and fever is one of its most common symptoms. Unless your child is less than 2 months of age, most fevers are simply a sign that your child’s immune system is doing its job. For a temperature greater than 100.4 F in a child less than two months call us immediately. Otherwise the following information is helpful to avoid common misconceptions about fever. Many parents needlessly worry when their child has a fever. This is called fever phobia. Overall, fevers are harmless. Let the following facts help you put fever into perspective:
MYTH: My child feels warm, so she has a fever.
FACT: Children can feel warm for a many reasons such as playing hard, crying, getting out of a warm bed or being outside on a hot day. They are “giving off heat”. Their skin temperature should return to normal in 10 to 20 minutes. Once these causes are excluded, about 80% of children who feel warm and act sick actually have a fever. If you want to be sure, take their temperature. The following are the cutoffs for fever using different types of thermometers:
Rectal, ear or temporal artery thermometers: 100.4° F (38.0° C) or higher
Oral thermometers: 100° F (37.8° C) or higher
Under the arm (Axillary or Armpit) temperatures: 99° F (37.2° C) or higher
MYTH: All fevers are bad for children.
FACT: Fevers turn on the body's immune system and help the body fight infection. Fevers are one of the body's protective mechanisms. Normal fevers between 100° and 104° F (37.8° - 40° C) are actually good for sick children.
MYTH: Fevers above 104° F (40° C) are dangerous and can cause brain damage.
FACT: Fevers with infections don't cause brain damage. Only body temperatures above 108° F (42° C) can cause brain damage. The body temperature climbs this high only with extreme environmental temperatures (for example, if a child is confined to a closed car in hot weather).
MYTH: Anyone can have a febrile seizure (seizure triggered by fever).
FACT: Only 4% of children can have a febrile seizure.
MYTH: Febrile seizures are harmful.
FACT: Febrile seizures are scary to watch, but they usually stop within 5 minutes. They cause no permanent harm. Children who have had febrile seizures do not have a greater risk for developmental delays, learning disabilities, or seizures without fever.
MYTH: All fevers need to be treated with fever medicine.
FACT: Fevers only need to be treated if they cause discomfort. Usually fevers don't cause any discomfort until they go above 102° or 103° F (39° or 39.5° C).
MYTH: Without treatment, fevers will keep going higher.
FACT: Wrong. Because the brain has a thermostat, fevers from infection usually don't go above 103° or 104° F (39.5°- 40° C). They rarely go to 105° or 106° F (40.6° or 41.1° C). While the latter are "high" fevers, they are harmless ones.
MYTH: I should give my child a cold bath or sponge him with alcohol to speed the reduction in fever.
FACT: These techniques should NOT be used. They do nothing to treat the child’s core temperature, can be dangerous, and are uncomfortable for your child.
MYTH: With treatment, fevers should come down to normal.
FACT: With treatment, fevers usually come down 2° or 3° F (1° or 1.5° C).
MYTH: If the fever doesn't come down (if you can't "break the fever"), the cause is serious.
FACT: Fevers that don't respond to fever medicine can be caused by viruses or bacteria. It doesn't relate to the seriousness of the infection. The main reason the fever doesn’t respond is usually due to inadequate dosing of fever reducers.
MYTH: Once the fever comes down with medicines, it should stay down.
FACT: The fever will normally last for 2 or 3 days with most viral infections. Therefore, when the fever medicine wears off, the fever will return and need to be treated again. The fever will go away and not return once your child’s body overpowers the virus (usually by the fourth day). You should call if your child has had a fever more that 3 or 4 days or if they have a specific symptom which needs to be addressed such as an earache or sore throat.
MYTH: If the fever is high, the cause is serious.
FACT: If the fever is high, the cause may or may not be serious. If your child looks very sick, the cause is more likely to be serious. Conversely, if your child acts fine the cause is likely to be less serious.
MYTH: Oral temperatures between 98.7° and 100° F (37.1° to 37.8° C) are low-grade fevers.
FACT: These temperatures are normal variations. The body's temperature normally changes throughout the day. It peaks in the late afternoon and evening. An actual low-grade fever is 100° F to 102° F (37.8° - 39° C).
SUMMARY: Remember that fever is fighting off your child's infection. Fever is one of the good guys.