Free guide · Scarlet Beast En español →
Sore throat in a child: a virus or strep, what helps, and when to call
For anyone looking after a child whose throat hurts: a parent, a grandparent, a foster parent, an aunt or uncle. This page passes on, by name, what three pages of the Centers for Disease Control and Prevention (CDC) say: the signs that suggest a virus and the signs of strep throat, what helps at home and from what age, the strep test, antibiotics and going back to school, and the signs that mean a call. It builds the questions to ask. Take only what you need today.
Right now
- Can’t swallow, drooling a lot, or trouble breathing? CDC’s Sore Throat Basics page says to see a healthcare provider for difficulty breathing, difficulty swallowing, or excessive drooling in young children. It does not say how fast and does not name 911. Ours: if your child is struggling to breathe, or cannot swallow and is drooling, call 911.
- A baby under 3 months old with a fever of 100.4 °F (38 °C) or higher: CDC says to talk to your healthcare provider right away.
- Blood in saliva or phlegm, dehydration, joint swelling and pain, a rash, or symptoms that do not improve within a few days or get worse: CDC says to see a healthcare provider. It says its list is not all-inclusive.
- On antibiotics for strep throat and not feeling better after 48 hours: CDC says to call a healthcare provider.
- No lozenges for children younger than 4 years. Never aspirin for children (CDC).
If you cannot reach a provider and you are frightened for your child, go to an emergency room or call 911. That line is ours. This page is not for emergencies.
More help
- A fever with it: Fever in a baby or child: when to call, and what helps.
- A cough or a runny nose, which CDC says suggest a virus: Cough or cold in a baby or child: what helps, the medicine ages, and when to call.
- Ear pain, which CDC lists among the complications that can occur after strep throat: Ear infection in a baby or child: what helps, and when to call.
- Not drinking, or throwing up: Vomiting and diarrhea in a baby or child: fluids, and when to call.
- Writing down what happened and when: Symptom diary.
- For a visit: Get ready for your appointment. No insurance: When you need a doctor and can’t pay.
- Smoke at home: When you want to quit smoking.
- All our free tools.
Looking after a baby or child? The pages on this site for a baby or child, on one list.
This page and its wording were written with AI (Claude) for Scarlet Beast (our AI policy). No doctor or nurse has reviewed it. The facts were read on October 10, 2026 on cdc.gov, on three pages, each in English and in Spanish: Sore Throat Basics (reviewed April 17, 2024), About Strep Throat (reviewed January 15, 2026), and Testing for Strep Throat or Scarlet Fever (the English page reviewed August 7, 2025; the Spanish page is dated March 1, 2024). The page says whose words it is passing on, and what is marked “ours” is our own. Who the pages were written for: everyone, adults and children, with lines about children. The 911 line is ours: none of the three pages names 911 or gives a list of emergency signs. Where the English and Spanish pages differ, the guide gives both: strep throat in children younger than 3 is “rare” on the English page and “less common” on the Spanish one; a negative culture means strep bacteria “aren’t” causing the sore throat in English and “probably aren’t” in Spanish. Numbers are the named page’s own. What we left out or did not read: the name of any antibiotic, every brand name, the amount of any medicine and the number of days an antibiotic is taken, which these pages do not give (acetaminophen, ibuprofen and aspirin are named because CDC’s own lines about children name them); scarlet fever, rheumatic fever and the kidney disease beyond the lines passed on here; tonsils being taken out; mononucleosis; strep tests sold for home use; and school or child care rules of your own state or school, which these pages do not give. We called no number. It saves nothing and loads no tracking.