When pharyngitis occurs, it can lead to more sputum, mainly sticky white sputum, as well as a distinct feeling of phlegm attachment. This is mainly due to mucous membrane and submucous lymphatic tissue hyperplasia in the throat, or edema caused by acid reflux burning the mucous membrane, it is best to eat more fresh vegetables and fruits. Because of the richness of a variety of vitamins, can regulate the vascular permeability to improve the submucosal lymphatic hyperplasia, but also to promote the peristaltic function of the gastrointestinal tract. The more commonly used are apples, pears, cherries, celery, spinach, etc. It is necessary to reduce the consumption of spicy and irritating and fried foods. Quit smoking and alcohol, avoid exposure to dust and irritating gases, and pay attention to oral hygiene, brush your teeth more after meals and before bed.