What to do when your baby has a fever

When your baby has a fever and you're worried, call your doctor. Be prepared to report your baby's temperature, the method you used to take your baby's temperature, how long your baby has had a fever, and any other symptoms your baby has. Wait to give acetaminophen (Tylenol) or any fever-reducing medication to a child under 2 until your pediatrician gives the OK. Ibuprofen, for example, should not to be given to children under 6 months or who are vomiting or dehydrated. Don't use aspirin to treat your child's fever. It has been linked to side effects such as intestinal bleeding, and most seriously, Reye's syndrome, a severe neurological disorder.

Myth conceptions: Any temperature over 98.6 degrees F equals fever

Most pediatricians consider any thermometer reading above 100.4 degrees F a sign of a fever, not 98.6 degrees F as you might suspect. That's because "normal" body temperature fluctuates in each of us throughout the day, depending on our age, general health, activity, how much clothing we're wearing, and the time of day. It tends to be lower in the morning and higher between late afternoon and early evening. There's a "normal," healthy temperature range for everyone. For children, it can run between 98.6 degrees F or so and 100.3 degrees F. Because accuracy can vary depending on the temperature-taking method you're using, mention whether you took your baby's temperature rectally or some other way. Your pediatrician probably will ask anyway.

Sanity saver: Worry-free temperature-taking tips

If you're not comfortable taking your baby's temperature rectally, you're not alone. Most parents don't relish the thought. But most babies don't mind it as much as you'd think they would. And many pediatricians consider a rectal temperature to be the "gold standard" and insist that you measure it that way. It gets easier with practice. Here are some pointers:

• Clean the end of the thermometer with soap and water or rubbing alcohol (whatever the instructions direct). Rinse it with cool water; don't use hot.
  
  
• Apply the probe cover if you are using one and put a dab of petroleum jelly on the end of the cover, or on the thermometer if you are not using a cover. Place your baby tummy-down on your lap or a firm surface. Hold him with your hand on his lower back. With your other hand, turn on the thermometer and insert one inch (or to the length indicated on the thermometer) into your baby's rectum.
  
  
• Wait until you hear the beep or until the required amount of time has passed, such as 5 to 90 seconds. It varies per thermometer. Remove the thermometer and check the reading. Write the temperature down in case your pediatrician asks for it (she will).