In patients who present with dry mouth and sore throat for a short period of time, it can be an acute infectious disease that is due to a bacterial or viral infection. The early stage is dominated by a burning and dry sensation, which leads to a persistently aggravated sore throat. It is best to be able to use antiviral drugs or antimicrobials for the cause, pay attention to rinsing the mouth and maintaining oral hygiene, and most patients will recover significantly in 7-10 days if there are no significant systemic complications. Patients with longer duration may be the manifestation of systemic diseases in the throat, such as hypothyroidism, diabetes, arteriosclerosis, vitamin deficiency, gastrointestinal malfunction, etc. It is necessary to combine systemic systemic examination and treat the original disease for the cause before the discomfort in the throat can gradually recover. For patients with obesity accompanied by severe sleep snoring, which can be caused by open-mouth breathing, it is necessary to improve sleep breathing monitoring as early as possible to clarify the specific type and choose different treatment according to the examination results.