Pharyngitis influenza mainly involves inflammation of the mucosa or submucosal tissues of the pharynx, generally affecting the lymphatic tissue of the throat, primarily caused by viral or bacterial infections. Clinically, symptoms include dryness and a burning sensation in the throat, a rough feeling, and during severe cases, swallowing pain that may even radiate to the ear. If accompanied by systemic symptoms, such as acute inflammation, the symptoms may vary depending on age, immunity, and the virulence of the virus or bacteria. These symptoms can include fever, headache, decreased appetite, and limb soreness, which are all characteristic of pharyngitis, and during an acute attack, resemble symptoms of influenza.