Inflammation of parotid duct orifice is usually caused by acute suppurative parotitis or chronic obstructive parotitis, which usually cannot be cured by itself, and needs to be treated by appropriate antibacterial therapy and removal of the cause of obstruction as follows. 1. Acute suppurative parotitis: use effective antibacterial drugs, such as cefmetazole sodium, cefixime, cefuroxime and other antibiotics, combined with systemic supportive therapy if necessary, and when there is pus, it should be incised and drained. 2. Chronic obstructive parotitis: treatment is based on removing the cause of obstruction, such as using salivary gland endoscopy to flush the dilatation catheter under direct vision, instilling iodized oil, removing stones, and if it is not effective, surgical resection of parotid gland tissue can be performed. All of the above medications should be used under the guidance of a doctor. There may be other causes of inflammation of the parotid duct orifice, so it is recommended to go to the hospital in a timely manner to clarify the cause of the disease and then carry out targeted treatment.