Clinical Reference Systems: Pediatric Advisor 10.0
Spanish version
Infectious Mononucleosis - Brief Version
What is mononucleosis?
Mononucleosis (mono) is a sickness caused by the Epstein-
Barr virus. The virus is spread through saliva from
coughing, sneezing, and kissing.
Your child will probably have:
- a very bad sore throat with positive blood test for
mono
- swollen lymph nodes in the neck, armpits, and groin
- fever for 7 to 14 days
- enlarged spleen (in 50% of children).
Most children have symptoms for a week. Those with very bad
symptoms usually feel completely well in 2 to 4 weeks.
How can I take care of my child?
- Give fever and pain medicines. No specific medicine will
cure mono. Give acetaminophen or ibuprofen for the pain
of swollen lymph nodes and fever.
- Treat the sore throat. Give soft foods. Children over
age 1 can sip warm chicken broth. Children over age 4
can suck on hard candy.
- Let your child rest. Your child can select how much rest
he or she needs.
- Be careful not to injure your child's enlarged spleen.
All children with mono should avoid contact sports for at
least 4 weeks. Your child should avoid heavy lifting and
getting constipated.
- Don't spread mono. Use separate drinking glasses and
utensils and avoid kissing.
Call your child's doctor right away if:
- Breathing becomes difficult or noisy.
- Abdominal pain occurs (especially high on your child's
left side).
- Signs of dehydration occur.
- Your child starts acting very sick.
Call your child's doctor in 24 hours if:
- Your child isn't drinking enough fluids.
- Sinus or ear pain occurs.
- Your child isn't back to school by 2 weeks.
- Any symptoms remain after 4 weeks.
- You have other questions or concerns.
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