Nasal allergies

What is nasal allergy and what are the symptoms?

Nasal allergies or allergic rhinitis is very common. It often presents with blocked nose or nasal congestion, runny nose, itchy nose, sneezing or coughing. It is often associated with asthma, eczema or itchy eyes.

Nasal allergies occur due to a combination of genetic and environmental factors. Often a family member may also have a history of asthma, eczema, or nasal allergies.

How is it diagnosed?

The ENT doctor will do an examination of the nose and nasal cavity. A nasoendoscopy (scope) may be done to do a more detailed examination and to assess the back part of the nose. The scope is done in the clinic and does not require any special preparation or fasting. It is a very quick procedure done after an anaesthetic nasal spray and is generally well tolerated.

What are the triggers/allergens?

The most common triggers in Singapore are house dust mites, molds, cockroaches and animal dander.

A skin prick test or blood test can be done to determine what triggers the patient is sensitive to.

How do I avoid the triggers/allergens?

Some methods to reduce exposure to trigger and allergens include the following:

1. Avoid carpets rugs and stuffed toys.
2. Hot water wash of all bedding once a week
3. Books and clothes to be stored in a closed cupboard.
4. Air conditioners if used should be cleaned and serviced regularly
5. No pets in the room

How can we treat nasal allergies / allergic rhinitis?

The doctor may prescribe a nasal spray. Sometimes, it may be prescribed together with antihistamines. The medications may need to be sustained over a period of time to be effective.

If nasal obstruction or congestion is severe due to enlarged turbinates or crooked nose bone, a simple procedure can be done to reduce the size of the turbinates or to correct the crooked nasal septum.

In patients with severe symptoms, immunotherapy may be recommended.

What is Sinusitis or Rhino sinusitis?

Sinusitis or Rhinosinusitis refers to the inflammation of the mucosal membrane in the nose and sinuses. It may presents as persistent blocked nose or runny nose, facial pain, headaches, a smelly or coloured nasal discharge or even a loss of smell. Its causes are varied and can be acute or chronic.

How is it diagnosed?

Sinusitis may be diagnosed with a combination of symptoms, nasoendoscopy and if required a CT scan. Nasoendosocpy (nasal scope) is a simple and painless procedure to look clearly into the nose and sinus openings.

How is it treated?

Depending on the cause and the duration of the symptoms, treatment can be as simple as a course of medications. In some cases surgery may be required. Modern Sinus surgery is safe, does not leave any visible scars and requires minimal recovery time.