Tonsils are the two lymph nodes located on each side of the back of your throat. Inflammation of tonsils is called tonsillitis. Pharyngitis is inflammation of the pharynx – in the back of the throat. It is commonly known as sore throat. More cases of pharyngitis are reported during winter.
Causes:

• Bacterial or viral infections
• Adenoviruses
• Influenza virus
• Herpes simplex virus

Symptoms:

• Loss of appetite
• Bad breath
• Ear pain
• Sore throat
• Difficulty in swallowing
• Fever
• Chills
• Tonsils appear red and swollen