Most of the alternating nasal congestion is triggered by the alternating hyperplasia and hypertrophy of the mucous membrane of the turbinate of the nose, which is not necessarily nasopharyngeal cancer. Early stage of nasopharyngeal cancer does not have special symptoms, but with the development of the disease, there may be poor nasal ventilation, and there may be blood after inhaling nasal mucus. It is suggested that if you are particularly worried, you should go to the hospital to check a nasopharyngoscopy, so as to make sure whether there is any lesion in nasopharyngeal area of the patient, and if necessary, take the pathology to make a clear diagnosis. In most cases, alternate nasal congestion is triggered by hypertrophic rhinitis, it is recommended that the patient can spray with physiological sea saline, tretinoin nasal spray, to reduce the patient’s clinical symptoms, you can also try oral Chinese medicines, such as the nasal abyss Tongkiao particles, qianbai rhinitis tablets and so on. Usually more exercise, avoid bad habits, it is recommended to eat more fresh fruits and vegetables.