A peritonsillar abscess, sometimes called quinsy, is a collection of pus in tissues beside a tonsil. It may develop after tonsillitis or a throat infection and can cause severe pain, usually on one side, with difficulty swallowing or opening the mouth. Because swelling can affect hydration and sometimes the airway, suspected abscess requires urgent medical evaluation rather than home treatment alone.
Symptoms that raise concern
Features can include severe one-sided throat pain, fever, difficulty swallowing, drooling, a muffled voice, bad breath or difficulty opening the mouth. The uvula may appear displaced, but people should not try to diagnose the condition by looking in the throat. Symptoms can overlap with other serious throat infections, so clinical examination is important.
Why timely assessment matters
Pain and swelling can make drinking difficult, leading to dehydration. In some cases, infection can spread or compromise the airway. A clinician assesses breathing, hydration, voice, mouth opening and the throat. If breathing is difficult, saliva cannot be swallowed or the person is rapidly worsening, seek emergency help instead of travelling alone or waiting for a routine appointment.
Treatment and recovery
Treatment may include antibiotics, pain control and drainage of the abscess by a trained clinician. Some people require hospital care, especially if they cannot drink, are systemically unwell or have airway concerns. Complete prescribed treatment and attend follow-up. Do not attempt to puncture, squeeze or drain swelling yourself, and do not use leftover antibiotics.
When to seek urgent help
Seek urgent assessment for severe unilateral throat pain with fever, muffled voice, drooling or difficulty opening the mouth. Emergency care is needed for breathing difficulty, inability to swallow saliva, blue lips, confusion or severe deterioration. Children and people with significant medical conditions may need an especially low threshold for prompt evaluation.
Frequently asked questions
Can a peritonsillar abscess clear with home remedies? Suspected abscess requires urgent medical assessment; home remedies cannot safely drain it.
Is it the same as tonsillitis? No. It is a collection of pus near a tonsil and can be a complication of throat infection.
Will antibiotics always be enough? Treatment may require drainage as well as antibiotics, depending on examination and severity.
Explore our voice and larynx assessment page for more information about this care option. A clinician can advise based on the individual history and examination findings.
Related reading
- Tonsillitis: Viral or Bacterial, and What Helps?
- Sore Throat: Common Causes and When to Seek Medical Care
- Tonsillectomy: When It Is Considered, Benefits and Risks