Start here · BabiesFever
Start here · Babies

Fever

2 min read

Pediatrician

Fever is the body's way of fighting infection. What matters most is the baby's age and how the baby looks, not just the number.

Fever
AgeHow to take the temperature
Up to 3 monthsRectal (the most accurate)
3 months to 4 yearsRectal or forehead (temporal artery). Underarm only to screen
From 6 monthsEar also works
From 4 yearsBy mouth, if the child can keep it closed

What to do

  1. Use a digital thermometer. Rectal: put petroleum jelly on the tip and insert only 1/2 to 1 inch (1 to 2.5 cm).
  2. Offer breast milk or formula more often so the baby doesn't get dehydrated.
  3. Dress the baby in light clothing and keep the room cool.
  4. If the baby is over 3 months and uncomfortable, you can give acetaminophen. Ibuprofen only from 6 months. Use the dose on the package for your baby's weight, or ask the pediatrician or pharmacist.
  5. Write down the time, the temperature and any medicine you gave.

What not to do

  • Never give aspirin.
  • Don't give fever medicine to a baby under 3 months without talking to the pediatrician first.
  • Don't rub the baby with alcohol or bathe them in cold water.
  • Don't overdress the baby to 'sweat out' the fever.
  • Don't use forehead strips or your hand to measure fever.