Recurring sinus infections, also termed "chronic sinusitis", affects more than 31 million people in America, according to the National Institute of Allergy and Infectious Disease. The Mayo Clinic defines chronic sinus infections as any sinus infection that either lasts for more than eight weeks or is recurring over a period of time. Recurring sinus infections may be the result of nasal polyps, severe allergies, a deviated septum or facial trauma. A person with recurring sinus infections should see a doctor regularly to avoid possible complications.
Nasal Polyps
It is unknown why nasal polyps form, but are more common in adults with allergies or children suffering from cystic fibrosis, according to the Mayo Clinic. Nasal polyps are small non-cancerous growths on the lining of the nasal cavity. Minor nasal polyps may go unnoticed, but as they grow, they can cause obstruction of the one or both nostrils. The obstruction leads to the lack of proper drainage and airflow. The constant back-up of nasal discharge creates a warm, moist environment where bacteria can grow. This can lead to recurring sinus infections. Nasal polyps may be treated with prescribed medications or with surgery.
Severe Allergies
Severe allergies, such as hay fever, can be a cause of recurring sinus infections. The American Academy of Allergy, Asthma and Immunology says that allergies can put a person at higher risk of developing recurrent sinusitis. Allergies commonly cause the sinus cavity to swell due to irritation, blocking normal nasal drainage, leading to the growth of possibility. A person diagnosed with severe allergies may be advised to take an over-the-counter antihistamine or begin an allergy shot regimen to reduce the allergic reaction.
Deviated Septum
A deviated septum is another common cause of recurring sinus infections. Much like nasal polyps, a deviated septum causes semi-permanent to permanent blockage in one or both nostrils. The blockage prevents the nose from draining properly, leading to congestion, irritation and inflammation in the sinus cavity. A deviated septum is a condition where an individual's center wall of the nose is crooked. It can be the result of physical development or the result of a facial injury. Depending on the severity of the condition, a doctor may recommend surgery to correct the crooked wall. There is no medication to treat a deviated septum.
Facial Trauma
In rare cases, facial trauma may cause a fractured or broken bone to obstruct the nasal passages. X-rays and a proper diagnosis of the trauma from a doctor is needed to confirm if it is the cause of recurrent sinus infections. Surgery may be advised to correct the bone.


