Cough well throat always have phlegm may be related to reflux pharyngitis, chronic simple pharyngitis and chronic hypertrophic pharyngitis and other diseases.
1. Reflux pharyngitis: the reflux of gastric contents into the throat can stimulate the pharyngeal nerve causing coughing, but also corrosion of the mucous membrane of the throat, so that glandular hyperplasia, secretion increased. After coughing, it can be manifested as simple coughing up phlegm and foreign body sensation in the throat.
2. Chronic simple pharyngitis: repeated episodes of acute simple pharyngitis can lead to this disease. After the cough is relieved under the effect of inflammatory factors, the pharyngeal mucosa is chronically congested, with more lymphocyte infiltration around its blood vessels, and leukocyte and plasma cell infiltration can also be seen. There is hyperplasia of the mucosa and submucosal connective tissue. Mucous glands can be hypertrophied, hypersecretory function, increased mucus secretion.
3. Chronic hypertrophic pharyngitis: chronic simple pharyngitis by the delay in the progress, can lead to hypertrophic changes in the mucosa of the posterior wall of the pharynx, adverse physical and chemical factors to reduce the pharyngeal sensory nerve sensitivity stimulation is reduced, only to show that the pharyngeal secretion viscous, coughing up sputum not clean and the throat foreign body sensation.
If you have a good cough and always have phlegm in the throat, you need to actively seek medical attention and systematic examination to make a clear diagnosis.