A peritonsillar abscess is an area of pus-filled tissue at the back of the mouth, next to one of the tonsils. The abscess can be very painful and make it hard to open the mouth. It can also cause ...

Look for: Swollen tonsils, fever, pain when swallowing Characterised ... Look for: Painful throat, runny nose, lasting fever and headache Similar to a typical sore throat, pharyngitis is ...