The common cause of recurrent pain in the throat is chronic pharyngitis or chronic tonsillitis, which is not very severe and can be tolerated by most patients. In addition to mild pain, it is accompanied by symptoms such as dry throat, itchy throat and irritating cough. However, if the sore throat is obvious and accompanied by symptoms such as hoarseness or blood in the sputum, you should also be alert to a swelling in the throat. As the disease progresses, the sore throat will gradually worsen. Therefore, if you have a sore throat, it is best to have a laryngoscopy to see what is causing it before treating it.