Painful swallowing of saliva is clinically classified into the following causes based on the location of the patient’s pain: 1. Pain in the oropharynx Clinically common are acute pharyngitis, herpetic pharyngitis, acute tonsillitis, peri-tonsillitis, peri-tonsillar abscess and other related diseases, mainly occurring in the oropharynx, involving the tonsils, posterior pharyngeal wall, tongue root and other related parts; clinically, anti-inflammatory, infusion and other symptomatic treatments are needed to relieve patients from the painful sensation of swallowing saliva. 2. Painful range in the hypopharynx. Clinically, it is mostly in the laryngeal node or cricoid cartilage and other parts of the larynx, mostly suggesting acute epiglottitis, edema of the phial, local inflammatory changes in the pear-shaped fossa, or scratching of the hypopharynx and other causes. In the case of acute epiglottitis, greater anti-inflammatory treatment is clinically indicated, using hormone therapy. If it is painful irritation in the epiglottis valley and other areas, it is clinically necessary to first rule out the possibility of local ulceration or erosion such as the presence of a tumor. If it is serious to carry out anti-inflammatory treatment, usually about a week, the symptoms can be significantly relieved.