Diphtheria is a contagious bacterial infection that mainly affects the nose and throat.
Our Health A-Z contains more information on Diphtheria.
Nasopharyngeal cancer is cancer that affects the nasopharynx.
Our Health A-Z contains more information on Nasopharyngeal cancer.
Important: If you have these symptoms, they may be unrelated to any of these conditions listed. If you are concerned about your symptoms then you should see a doctor.