Viral pharyngitis is an acute infection of the pharyngeal mucosa and submucosal tissues caused by viruses, mostly herpes in the pharynx, oral mucosa and surrounding skin. Common viruses such as coxsackievirus, adenovirus, parainfluenza virus, rhinovirus or influenza virus are transmitted by droplets or close contact, and can also be caused by inflammation of the oral cavity. There are two types of viral pharyngitis, the acute type and the chronic type. It is common for patients to have an acute onset of infection with these viruses, which can begin with a pinpoint herpes on the pharynx, oral mucosa, tonsils, and corners of the mouth, etc. As the disease progresses, the herpes will soon break down to form a shallow ulcer with a yellowish pseudomembrane covering the ulcer surface. This is followed by chills, fever, and burning pain in the pharynx. In smaller patients, such as infants, the onset of the disease is followed by crying, refusal to eat, and swollen and painful submandibular lymph nodes when touched. The chronic type of viral pharyngitis is common in adults, mostly due to the acute type is not completely cured after the onset of the disease, the disease is prolonged to develop into chronic inflammation, patients show a few herpes in the pharynx or oral mucosa, the surface is covered with gray-white pseudomembrane after breaking, there is a slight burning sensation or pain in the pharynx, generally no obvious systemic symptoms. In summary, viral pharyngitis is an inflammation of the upper respiratory tract caused by viral infection, which can be secondary to rhinitis or tonsillitis, and usually manifests as chills, fever, and burning pain in the pharynx during the acute phase.