1 It’s usually a complication of tonsillitis. 2  The abscess is most often caused by a bacterial infection. The symptoms can seem very similar to those of strep throat or tonsillitis.  A peritonsillar abscess can be treated in several different ways, including antibiotics.
http://www.healthline.com/health/peritonsillar-abscess
The most common organisms associated with peritonsillar abscess are listed in Table 1. Streptococcus pyogenes (group A beta-hemolytic streptococcus) is the most common aerobic organism associated with peritonsillar abscess. The most common anaerobic organism is Fusobacterium.
http://www.aafp.org/afp/2002/0101/p93.html
Symptoms of a Peritonsillar Abscess. The symptoms of a peritonsillar abscess are similar to those of tonsillitis and strep throat. However, with this condition, you may actually be able to see the abscess towards the back of your throat. It looks like a swollen, whitish blister or boil. Symptoms of a peritonsillar abscess include: infection in one or both tonsils.
http://www.healthline.com/health/peritonsillar-abscess
URL of this page: //medlineplus.gov/ency/article/000984.htm. Retropharyngeal abscess is a collection of pus in the tissues in the back of the throat. It can be a life-threatening medical condition. Retropharyngeal abscess most often affects children under age 5, but it can occur at any age. Infected material (pus) builds up in the space around the tissues at the back of the throat. This can occur during or very soon after a throat infection.
https://medlineplus.gov/ency/article/000984.htm
Peritonsillar abscess, the most common deep infection of the head and neck that occurs in adults, is typically formed by a combination of aerobic and anaerobic bacteria. The presenting symptoms include fever, throat pain, and trismus. Ultrasonography and computed tomographic scanning are useful in confirming a diagnosis. Needle aspiration remains the gold standard for diagnosis and treatment of peritonsillar abscess.
http://www.aafp.org/afp/2002/0101/p93.html
Peritonsillar abscess is the most common deep infection of the head and neck that occurs in adults. This infection begins as a superficial infection and progresses into tonsillar cellulitis. A peritonsillar abscess forms at the most advanced stage.
http://www.aafp.org/afp/2002/0101/p93.html
1 The abscess is most often caused by a bacterial infection. The symptoms can seem very similar to those of strep throat or tonsillitis.  A peritonsillar abscess can be treated in several different ways, including antibiotics.
http://www.healthline.com/health/peritonsillar-abscess
The first symptom of peritonsillar abscess is usually a sore throat. A period without fever or other symptoms may follow as the abscess develops. It is not unusual for a delay of 2-5 days between the start of symptoms and abscess formation. The mouth and throat may show a swollen area of inflammation - typically on one side.
http://www.emedicinehealth.com/peritonsillar_abscess/page3_em.htm
1 The uvula (the small finger of tissue that hangs down in the middle of the throat) may be shoved away from the swollen side of the mouth. 2  Lymph glands in the neck may be enlarged and tender. 3  Other signs and symptoms may be observed:  Severe sore throat that becomes isolated to one side.
http://www.emedicinehealth.com/peritonsillar_abscess/page3_em.htm
1 The mouth and throat may show a swollen area of inflammation - typically on one side. 2  The uvula (the small finger of tissue that hangs down in the middle of the throat) may be shoved away from the swollen side of the mouth. 3  Lymph glands in the neck may be enlarged and tender.  Other signs and symptoms may be observed:
http://www.emedicinehealth.com/peritonsillar_abscess/page3_em.htm
abscess in throat symptoms
Symptoms of abscess in throat are swollen, whitish blister or boil. Swollen, whitish blister or boil are symptoms of abscess in the throat.