Frequent dryness in the throat is usually caused by dry pharyngitis, a chronic infectious disease of the pharyngeal mucosa. The causes of this disease are as follows: the nature of work, climate, and the sequelae of radiation therapy. 1, the nature of work: if engaged in the occupation of cement, sand turning, electroplating, dyes, tanning and other types of industries, due to long-term in the production of dust and aerosol environment work, it is easy to lead to a dry throat, long-term down is easy to suffer from dry laryngitis. 2, climate: with the change of seasons, whenever it reaches spring, autumn throat often feel dry, you can cook some silver ear pear water or white radish water, etc., can effectively relieve the dry phenomenon. 3.Radiotherapy sequelae: If the body has suffered from rhinitis cancer and has used radiotherapy, the phenomenon of dry throat will often appear after the operation, this phenomenon is the sequelae of radiotherapy, usually due to the atrophic damage of the body’s mucosa and submucosal secretory glands and salivary glands thus preventing the normal secretion of the glands, in the short term, it is difficult to recover from this phenomenon. Dryness in the throat may be caused by several reasons as above. In daily life, we should drink more water and actively exercise to improve the body’s resistance.