Peritonsillar Abscess (Quinsy): Symptoms, Recovery and Treatment in the UK

A peritonsillar abscess, commonly known in the UK as Quinsy, is a painful collection of pus that develops in the tissues of the throat next to one of the tonsils. It is typically a complication of acute tonsillitis. When the infection spreads from the tonsil into the surrounding space, it can lead to an abscess formation that causes significant swelling and discomfort.

While tonsillitis is extremely common in both children and adults, Quinsy is most frequently seen in teenagers and young adults. According to NICE (National Institute for Health and Care Excellence) guidance, early recognition is vital because the swelling can eventually obstruct the airway or spread deeper into the neck if left untreated. Unlike regular tonsillitis, which often affects both sides, Quinsy is almost always unilateral, meaning it affects only one side of the throat.

The symptoms of Quinsy usually develop a few days after a sore throat or tonsillitis begins to feel worse rather than better. Patients in the UK should look out for several distinct signs that differentiate Quinsy from a standard viral infection:

• Severe, one-sided throat pain: The pain is often described as intense and may radiate to the ear on the same side.
• Trismus (Lockjaw): Difficulty opening the mouth fully due to inflammation of the muscles used for chewing.
• 'Hot potato' voice: A muffled or thick quality to the voice, as if you are speaking with a hot potato in your mouth.
• Swollen glands: Noticeable swelling in the neck and jaw area.
• Drooling: Difficulty or pain when swallowing saliva may lead to involuntary drooling.
• Fever and rigours: High temperature, chills, and a general sense of being very unwell.

Quinsy is caused by a bacterial infection, most commonly Streptococcus pyogenes (the same bacteria responsible for 'Strep throat'). The infection penetrates the tonsillar capsule and enters the peritonsillar space. Factors that may increase the risk of developing an abscess include:

• Recurring bouts of tonsillitis.
• Chronic tonsillitis.
• Infectious mononucleosis (Glandular fever).
• Smoking, which can irritate the throat tissues and affect the immune response.
• Poor dental hygiene or gum disease (periodontal disease).

The NHS notes that while most sore throats resolve with paracetamol and rest, Quinsy is a bacterial complication that requires specific medical intervention, usually involving a course of strong antibiotics.

In the UK, the management of a peritonsillar abscess typically follows a structured pathway. Because it is a collection of pus, antibiotics alone may not always be sufficient to resolve the issue if the abscess is large. Treatments include:

Antibiotics

High-dose antibiotics (such as phenoxymethylpenicillin or co-amoxiclav) are the first line of defence. If the patient is unable to swallow tablets due to pain, they may require intravenous (IV) antibiotics in a hospital setting for 24 hours.

Drainage Procedures

The abscess often needs to be drained to relieve pressure and clear the infection. This is usually performed by an ENT (Ear, Nose, and Throat) specialist using one of three methods: needle aspiration (using a syringe), incision and drainage (making a small cut), or rarely, an emergency tonsillectomy.

Corticosteroids

Sometimes, a short course of steroids is prescribed to reduce the severe swelling in the throat, making it easier for the patient to breathe and swallow.

If you are suffering from a worsening sore throat and are unsure if it is tonsillitis or the beginning of an abscess, you can speak to a GP online for an initial assessment. An online doctor can review your symptoms via video consultation, look for visible signs of asymmetrical swelling (the uvula being pushed to one side), and provide essential advice.

An online GP service is particularly useful for:

• Early Intervention: Getting a prescription for antibiotics before an infection progresses to a full abscess.
• Recovery Monitoring: If you have already had an abscess drained at a hospital, an online doctor can monitor your recovery and provide follow-up sick notes for work.
• Referral Advice: Guiding you on whether your symptoms require an urgent trip to the nearest A&E or an ENT clinic.

A private GP consultation can save time when you are in discomfort, ensuring you receive the right evidence-based guidance aligned with NICE CKS protocols.

Most people make a full recovery from Quinsy within one to two weeks. It is important to complete the full course of antibiotics even if you feel significantly better after the abscess is drained. Failure to finish the medication can lead to the infection returning.

For individuals who suffer from recurrent Quinsy (more than one episode), a tonsillectomy—the surgical removal of the tonsils—may be recommended by the NHS. While this was once a very common procedure, it is now reserved for those with frequent, severe infections that impact their quality of life. During your recovery, maintaining hydration and using pain relief such as paracetamol or ibuprofen is essential.