Chronic sinusitis is a disease with nasal congestion, runny nose, dizziness, headache, and loss of smell as the main manifestations. The disease has a long course and is mostly caused by repeated attacks of acute sinusitis that are not completely cured. The majority of chronic sinusitis is caused by a variety of bacterial infections in the sinuses, and the causative organisms are most often H. influenzae and Streptococcus. What are the symptoms of chronic sinusitis? 1, runny nose: mostly purulent, yellow, green or gray-green, long duration of the disease, nasal snot can have breath, pus can often flow through the posterior nostril to the throat, the patient feels that there is phlegm in the pharynx, and often spit out after the pharynx suction. 2.Nasal congestion: caused by nasal mucous membrane congestion, turbinate hypertrophy or nasal polyp, sometimes also due to too much pus, nasal congestion can be reduced after blowing out nasal mucus. 3.Decreased sense of smell: mostly due to two reasons, one is the swelling of nasal mucosa, nasal congestion, airflow can not enter the olfactory area, and the other is chronic inflammation of the mucous membrane in the olfactory area long-term stimulation, olfactory function decreases or disappears. 4, dizziness, headache: chronic sinusitis is mostly manifested as a heavy head feeling, acute attacks can have headache, all due to poor drainage in the sinuses. 5, systemic manifestations: a few people may not have obvious symptoms, but most have dizziness, loss of appetite, easy fatigue, memory loss and insomnia. How is chronic sinusitis treated? The treatment of chronic sinusitis is often long-term, especially in the weather changes and winter period, pay attention to prevent upper sensation, reduce acute attacks, adhere to the medication, and if necessary, surgery. 1.Treatment with topical medication: nasal drops with vasoconstrictors and corticosteroids to improve nasal ventilation and drainage. 2, puncture treatment: for the sinus accumulation of pus more and not easy to discharge the method can be used, commonly used in maxillary sinusitis, this method is safe, reliable, local damage is very small, must be operated by the doctor with a special puncture needle through the human sinus, the pus snot flushed out, and then the anti-inflammatory drugs directly into the sinus, 1-2 / times a week. 3, local physical therapy also has a certain effect on chronic sinusitis. 4.Replacement method: use negative pressure suction method to make the medicine enter the sinus. It should be used for frontal sinusitis, sieve sinus and pterygoid sinusitis, and is most suitable for those with chronic total sinusitis. 5.Surgery of nasal lesions: such as partial excision of middle turbinate and inferior turbinate and correction of deviated nasal septum. The purpose of surgery is to release the obstruction in the middle nasal tract and its nearby areas, improve sinus drainage and ventilation, and promote the remission of sinus inflammation. 6.Functional nasal endoscopic surgery: At present, this is the main international surgical method regarding the treatment of chronic sinusitis. It has the advantages of small trauma, fine operation, clear field of view exposure and thorough treatment, and has a minimally invasive nature that cannot be matched by traditional sinusitis surgery.