Pharyngitis in teenagers
Informed by recognized medical guidance
Overview
Pharyngitis is a sore, inflamed throat. It is often caused by an infection. The throat may feel scratchy, dry, or painful, especially when swallowing.
Key facts
- Most pharyngitis in teenagers is caused by viruses, not bacteria.
- Sore throats usually get better on their own within a week.
- Strep throat (a bacterial infection) needs treatment with antibiotics, but only about 1 in 10 teenagers with a sore throat has strep.
Yes, pharyngitis is very common in teenagers. Most teenagers get a sore throat at least once a year.
It affects teenagers of all ages, but it is most common in those aged 5 to 15 years.
Symptoms
- Trouble breathing
- Difficulty swallowing saliva (drooling)
- Unable to open mouth fully (trismus)
- Stiff neck with fever
- ⚠High fever that doesn't come down with paracetamol or ibuprofen
- ⚠Severe pain that interferes with drinking
- ⚠Symptoms that get worse after a few days
- ⚠A rash that looks like sandpaper (may indicate scarlet fever)
Common symptoms
- Sore throat
- Pain when swallowing
- Red, swollen tonsils
- White patches on tonsils
- Fever
- Swollen lymph nodes in the neck
Symptoms in children
- In younger children, they may complain of a sore throat, have a fever, refuse to eat or drink, and be irritable.
Symptoms in older adults
- In older adults, symptoms may be less specific and include a sore throat without much pain, fatigue, and cough.
Causes
Main causes
- Viral infections (most common, like cold or flu viruses)
- Bacterial infection (Group A Streptococcus – 'strep throat')
- Irritants like smoke or dry air
Risk factors
- Close contact with someone who has a sore throat (e.g. at school)
- Weakened immune system
- Season (winter months)
When to see a doctor
See a doctor urgently if:
- If your teenager has trouble breathing
- If they cannot swallow liquids
- If they have a high fever that doesn't respond to fever reducers
- If they seem very unwell
Book a routine appointment if:
- If sore throat lasts more than a week
- If they have a persistent fever
- If they have white patches on tonsils
- If you suspect strep throat (e.g., sandpaper rash, severe pain)
Diagnosis
A doctor will ask about symptoms and examine the throat, feel the neck, and check for fever.
Tests that may be done
- Throat swab (to test for strep bacteria)
- Rapid strep test (gives results in minutes)
- Blood test (rarely needed)
What to expect at your appointment
The doctor may take a swab from the back of the throat. This is quick and may be slightly uncomfortable but not painful. Results are usually available in a few minutes for a rapid test, or a few days for a culture.
Treatment
Treatment depends on the cause. Viral pharyngitis does not need antibiotics. It usually gets better with rest and home care. Strep throat requires antibiotics to prevent complications.
Self-care at home
- Drink plenty of fluids (warm tea, cold drinks, or ice pops)
- Rest your voice
- Gargle with warm salty water (for ages 12 and above)
- Use a humidifier or take a steamy shower
- Take over-the-counter pain relievers like paracetamol or ibuprofen (follow instructions)
Medical treatments
If tests show a bacterial infection (strep throat), a doctor will prescribe a course of antibiotics. It is important to finish the full course even if symptoms improve. Do not share antibiotics. For viral pharyngitis, only symptom relief is offered.
When is surgery considered?
Surgery (tonsillectomy) is rarely needed. It may be considered if a teenager gets severe tonsillitis many times in a year, or if the tonsils are so large they cause breathing problems.
Living with this condition
While your teenager has pharyngitis, they may need to rest and stay home from school until they feel better, usually a few days. They can return once fever is gone and they are eating and drinking normally.
Lifestyle tips
- Avoid smoking or vaping
- Avoid sharing cups or utensils
- Wash hands often to prevent spreading infection
Diet and exercise
Soft foods and plenty of liquids are helpful. Avoid spicy or acidic foods that can irritate the throat. Rest is important, but light activity is okay as energy returns.
Mental health and emotional wellbeing
Having a sore throat can make a teenager feel irritable and frustrated, especially if they have to miss social activities. Reassure them that this is temporary. Encourage communication about how they are feeling.
Prevention
You cannot always prevent pharyngitis, but good hygiene helps. Teach your teenager to wash hands regularly, avoid close contact with people who are sick, and not share drinks or food.
Vaccines
There is no vaccine specifically for pharyngitis, but staying up-to-date with routine vaccines (like flu vaccine) can reduce the risk of viral infections that cause sore throats.
Complications
If left untreated
- For untreated strep throat, rare complications include rheumatic fever (which can affect the heart) and kidney problems (post-streptococcal glomerulonephritis).
- Viral pharyngitis rarely causes complications.
Long-term outlook
With proper care, most teenagers recover fully from pharyngitis within a week. Even strep throat, if treated, usually does not cause long-term problems. The body heals well.
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Always verify with your doctor
Health guidelines vary by country and region. The information in this article is based on international clinical guidelines but may not reflect the specific guidelines, medications, or practices in your country. Always discuss your health concerns with your own doctor or healthcare provider, and refer to your local national health guidelines where available.
Important notice This information is for educational purposes only. It does not replace professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider about your specific situation. If you are experiencing a medical emergency, call your local emergency services immediately.
Related conditions
Sources and guidance
This article is educational and is prepared with reference to recognized health information and clinical guidance sources where available. Specific source links may vary by topic.
Last updated: July 19, 2026
Educational note: This information is for education only and is not a diagnosis.
Use it to support, not replace, advice from a licensed clinician.
If symptoms are severe, worsening, or urgent, call your local emergency number or seek emergency care.