When people talk about the throat, they mainly refer to the oropharynx and laryngopharynx of the pharynx. The pharynx is anatomically divided into the nasopharynx, oropharynx and laryngopharynx. Phlegm in the pharynx is often more related to diseases of the upper gastrointestinal tract or respiratory tract.
The submucosa of the oropharynx and laryngopharynx is rich in mucus and plasma glands, which under normal circumstances secrete a small amount of glands that regulate the temperature, humidity and cleanse the inhaled air, but do not accumulate into phlegm. When the mucous membrane of the throat is stimulated by various factors and the secretion of glands increases and is accompanied by infection, phlegm will appear. If phlegm in the throat is ruled out to be caused by lower respiratory tract diseases, it is considered to be nasal snot from rhinitis or sinusitis backing up into the throat and presenting phlegm symptoms; it is necessary to cleanse the nasal cavity with saline or edible light saline; nasal spray with hormonal nasal spray; oral nasal mucus promoting drugs; if it is yellow pus phlegm, it is necessary to treat with antibiotics. If it is caused by gastroesophageal reflux disease, it needs to be treated with anti-reflux drugs.
For phlegm in the throat, antibiotics should not be used indiscriminately for treatment; nor should phlegmolytic drugs be used indiscriminately. You need to go to otorhinolaryngology for examination to clarify the cause of phlegm and then treat it under the guidance of a doctor. Pay attention to the diet, do not eat spicy and irritating food, and prohibit smoking and alcohol.