Pharyngitis is the inflammation of the pharynx, the part of the throat located behind the mouth. It is commonly caused by viral infections, such as the common cold or influenza, but can also result from bacterial infections, like strep throat. Symptoms often include a sore throat, difficulty swallowing, and swollen lymph nodes. Treatment for pharyngitis typically focuses on relieving symptoms. Over-the-counter pain relievers, throat lozenges, and warm saltwater gargles can help soothe discomfort. If a bacterial infection is suspected, a healthcare provider may prescribe antibiotics to treat the condition effectively.