After that, I felt a sore throat. I went to Jianghan Oilfield General Hospital and found lymphatic follicles. Usually tolerable. In recent six months, there has been mucus secretion in the pharynx and foreign body sensation in the throat. Laryngoscopy results: congestion of throat, hyperplasia of lymph follicles in posterior pharyngeal wall and tongue root, symmetrical vocal cords, no new organisms and normal movement.