Chronic pharyngitis is the main clinical consideration for throat discomfort after eating sweet foods. Because sweet foods are particularly high in sugar, after eating foods with high sugar content, patients produce phlegm very obviously, which can lead to discomfort in the throat. Patients may be uncomfortable with frequent phlegm in the throat, foreign body sensation in the throat, repeated throat clearing, etc. In this case, it is recommended to go to the Department of Otolaryngology for electronic laryngoscopy. Under the laryngoscope, dark red congestion of the pharyngeal mucosa, hyperplasia of lymphatic follicles in the posterior pharyngeal wall and tongue root can be seen. In this case, patients are advised to eat a light diet, less spicy and stimulating food and less soup. Medication can be applied under the guidance of the outpatient doctor, oral solution for pharyngitis, such as Pudilan anti-inflammatory oral solution and Golden Voice and Pharynx Pill, etc., for symptomatic treatment, and patients can also take tablets for symptomatic treatment.