Sinusitis

Sinusitis may be defined as inflammation of the lining membrane the sinuses.

Why it occurs?

Sinusitis is most often caused by viral infection. In this condition, the mucous membrane lining inside of the nose and the sinuses are inflamed and the mucous membrane swells. Thus, the drainage of fluid from the sinuses into the nose and throat is blocked. Bacterial infection in the sinuses also Causes it. It results from an upper respiratory tract infection. Fungal infections may also cause it in people with impaired immune systems.

Some Medical Problems can increase the risk, such as-

Common Colds
Allergies
Nasal polyps or tumors
Enlarged or infected adenoids in children
Cystic fibrosis
Gastroesophageal reflux disease
Immune system disorders
Structural problems in the nose
Tooth Infection (rare)

What are the Symptoms?

Loss of smell or Bad Breath
A cough that often is worse at night
Nasal congestion causing trouble breathing through nose and discharge (a thick, yellow or greenish) from the nose or down the back of the throat
A sore Throat
Fever
Fatigue
A headache or pain, tenderness, pressure and swelling around eyes, nose, cheeks or forehead
A toothache and upper jaw aching