Cold & Flu – Age by age guide to follow when your little one is ill


If your newborn baby is unlucky enough to catch a cold or the flu, it will affect her more than if she were a little older. Babies’ can’t fight off infections easily because their immune systems are still developing. Which makes cold & flu more serious for them.

Your baby may come down with anything between 6 and 10 bugs in her first year. Prepare for that! It’s important you pay attention to her symptoms.


Call your paediatrician if your baby is:

  • ill in any way and is less than 3 months old
  • 3 months or younger and has a 100.4ºF temperature
  • 3 to 6 months old and has a 101.1ºF temperature
  • over 6 months old and has a 103ºF temperature

Or, if your baby:

  • has a persistent cough or nasal mucus
  • has blue lips or nails
  • is struggling to breathe
  • seems unusually fussy
  • is fatigued


Use a rubber bulb syringe to suction out mucus and keep your baby’s nasal passages clear. Or sit your baby upright in your lap and run a hot shower. Or try putting a cool-mist humidifier or steam vaporiser or in her nursery.


If your little one is vomiting frequently, take extra care to keep her hydrated by feeding her little amounts of breast milk or formula milk often. You could also try giving her half an ounce of Pedialyte every 10 to 15 minutes. If your baby is running a slight temperature but is eating, drinking and playing normally, monitor her temperature for 24 hours.


If your baby is vomiting, call your paediatrician if:

  • she is still being sick beyond 24 hours, or if she continues to throw up everything she consumes
  • there is blood or bile present in the vomit
  • your baby is unable to keep any amount of food or liquid down
  • your baby seems fatigued and dehydrated
  • she is urinating less than normal, shows signs of a dry mouth, sunken eyes or soft spot.
  • she may be dehydrated if she cannot cry tears