👉 Tonsillitis is a condition in which the lining of your throat, known as the tonsil, becomes inflamed and swollen. Symptoms include soreness or pain in the back of your throat, difficulty swallowing, coughing up mucus, and sometimes fever. It's typically caused by an infection that occurs in the tonsils, including bacteria or fungi. Tonsillitis can be caused by a variety of factors, such as viral infections like the common cold, allergies, or certain medications
