Acute pharyngitis is an acute inflammation of the pharyngeal mucosa and submucosal tissues, mostly involving the lymphatic tissue of the pharynx, and can develop alone or secondary to acute rhinitis and acute tonsillitis. Acute pharyngitis usually starts rapidly, and patients may first experience dryness, burning and roughness in the pharynx, followed by significant pharyngeal pain, especially painful when swallowing, and some patients may have pain radiating to the ear and neck, and in severe cases, difficulty in turning the head. In some patients, the pain may radiate to the ear and neck. After the onset of the disease, depending on the patient’s age, resistance and virulence of the virus or bacteria, systemic symptoms such as fever, headache, loss of appetite and limb pain may occur to varying degrees, but are generally mild. Examination of the pharynx reveals acute diffuse congestion and edema of the oropharyngeal mucosa, and the lesion may involve the submandibular lymph nodes, with enlarged and painful lymph nodes. Some patients with acute pharyngitis can develop complications, such as otitis media, sinusitis and acute inflammation of the respiratory tract. patients with acute pharyngitis caused by group A type B streptococcal infection are more serious and can cause septic lesions in distant organs, such as acute nephritis, rheumatic fever, sepsis, etc., called acute septic pharyngitis, which requires attention. In summary, acute pharyngitis is mainly manifested by symptoms such as dryness of the pharynx, foreign body sensation, sore throat, etc. Some patients may be accompanied by fever, headache, loss of appetite, aching limbs and other systemic symptoms.