Sinus & Allergy Center

The Loma Linda University Health Care Sinus & Allergy Center is in the Department of Otolaryngology-Head and Neck Surgery. The Sinus & Allergy Center specializes in the medical and surgical treatment of diseases of the nose and sinuses including:

  • Acute and chronic sinus infection
  • Medical management of seasonal and year-round allergies
  • Allergy immunotherapy - allergy shots and sub-lingual allergy drops
  • Fungal infections of the sinuses
  • Nosebleeds
  • Tumors of the nose and sinuses
  • Nasal polyps
  • Persistent disease after previous sinus surgery
  • Sinus headache
  • Complications of previous sinus surgeries
  • Frontal and sphenoid sinusitis
  • Nasal obstruction and deviated septum
  • Blocked nasal passages
  • Surgical management of Grave's eye disease
  • Surgical correction of obstructed tear ducts
  • Endoscopic skull base surgery

Our Mission

  • To provide the highest level of nasal and sinus care
  • Postgraduate education of health care professionals
  • Sinus and allergy research

What is Sinusitis?

Your sinuses are air-filled chambers within the bones of the face. There are four pairs of sinuses: the frontal, ethmoid, maxillary and sphenoid sinuses, forming an irregular, honeycomb structure. When they are working well, the sinuses constantly circulate air and produce/drain mucous which lupicates your nose and helps keep it clean. This drainage system can shut down when an underlying problem, such as colds, allergies or an obstruction causes blockages, resulting in nasal congestion, headache, pain and pressure around the face, lethargy, low-grade fevers, post-nasal discharge and post-nasal drip. During infections or allergy flare-ups, the cilia (tiny hair-like structures) can stop working and contribute to the build-up of fluid within the sinus cavities. This stagnant fluid is the perfect feeding ground for bacteria, fungus and viruses. Chronic sinusitis is the main disease in which the center specializes.

Advanced Sinus Care

At the Loma Linda Sinus and Allergy Center, our doctors have the highest level of training available in diseases of the nose and sinuses. We use the most modern and best tools in the diagnosis and management of our patients. This includes regular use of diagnostic nasal endoscopy and multi-planar CT scans.

Culture-Directed Therapy

We believe that the best method to treat patients with sinus infections is to obtain endoscopically-guided cultures. Using cultures may result in more effective treatment or protect you from side effects when no antibiotic is required.

In-Office CT Scan

The Sinus and Allergy Center features its own cone-beam CT scanner. This type of CT utilizes a fraction of the radiation of a conventional CT scanner, and allows for immediate viewing of results.

Balloon Sinus Surgery

The Sinus and Allergy Center has been performing balloon sinus surgery since 2005 – the longest continuous experience in the United States. Most balloon cases are done in the clinic under a local anesthetic and allow rapid return to normal activities compared to conventional sinus surgery.

Endoscopic Sinus Surgery

Most cases of sinus-related diseases can be treated with medicines. However, in some cases surgery may also be needed. The most common type of surgery is called Functional Endoscopic Sinus Surgery (FESS).

During FESS, your surgeon will use small cameras and instruments to carefully work through your nostrils to reach your sinus disease. Obstructing tissues will be removed to allow the sinuses to drain more naturally which may decrease the severity, frequency and duration of your sinus symptoms. If surgery is recommended, the doctors at the Center will clearly explain the procedure, benefits, risks, post-op care and answer all your questions.

Computer-assisted Sinus Surgery

Your surgeon may also suggest that your surgery include surgical navigation. This involves a special type of CT scan (which can be done in our office) and is paired with a computer in the operating room that functions much like a GPS system to improve accuracy and avoid complications in difficult sinus cases.

Allergy Management

Our office is set up to both diagnose patient with allergies and treat them. We have two nurses dedicated to allergy testing and administering allergy shots and drops. We can test for the most common pollen allergens in Southern California, animal dander, dust and mold allergens and over 40 different food allergies. We offer allergy shots five days a week and also are capable of mixing and administering sub-lingual drops.

Before Your Visit

You may need a referral from your primary care provider. The staff at the Center will provide you with information required to pre-authorize your visit and any diagnostic studies that may be needed. The staff will also provide you or your insurance provider with necessary codes and procedure information.

Patients should bring copies of previous medical records and X-ray films to the visit. You should also make a list of your questions to be reviewed together with your surgeon.

Expect to spend at least 45 minutes during your first visit and allow time for diagnostic studies, which may be necessary also. The doctors at the Center do not rush during the care of their patients and may be involved with teaching others during your visit.

The Sinus and Allergy Center Staff

Christopher Church, MD

Christopher Church, MD - Dr. Church is the director of the Sinus Center. He completed his residency in Otolaryngology - Head & Neck Surgery at Loma Linda University. He then spent a dedicated year pursuing a fellowship in Advanced Sinus Surgery & Rhinology at Stanford University. His special interests include chronic sinusitis functional endoscopic sinus surgery.

Kristin Seiberling, MD

Kristin Seiberling, MD - Dr. Seiberling completed her residency at Northwestern Medical Center in Otolaryngology - Head & Neck Surgery. She then completed her fellowship in Academic Rhinology, Advanced Sinus Surgery and Skull Base Surgery with the world renowned surgeon Dr. PJ Wormald in Adelaide, Australia.  Dr. Seiberling directs our allergy practice.  She is certified by  the American Academy of Otolaryngic Allergy (AAOA.) Her clinical interests lie in advanced management of sinus diseases, allergy  and skull base tumors.


Take I-10 to the California Street exit, head north and take a right turn onto Orange Tree Lane. We are located on corner of Nevada Street and Orange Tree Lane.

Loma Linda University Health, Sinus & Allergy Center
1895 Orange Tree Lane, Suite 102
Redlands, CA 92374

For More Information on Sinus Disease: 

American Academy of Otolaryngology-Head and Neck Surgery

American Rhinologic Society

American Academy of Otolaryngic Allergy – The ENT Allergy Specialist (pdf)

What is an Allergy? (pdf)

Contact the Sinus Allergy Center

Call Us: 866-557-4687