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Sinusitis Acute

Definition :
Your sinuses are the air-filled hollow cavities around your nose and nasal passages. When these passages become inflamed, fluid may accumulate and interfere with normal drainage of mucus in the sinuses. This condition is known as acute sinusitis.

The result? You may have trouble breathing through your nose. When you lean forward, throbbing pains may move across your face. You may have a headache, fever or nagging cough, and you feel your eyes and facial tissue swell up.

It's an uncomfortable condition. The common cold virus is the most frequent cause, although other triggers include bacteria or allergies. Most colds resolve with time, but nearly 2 percent develop into acute sinusitis. Almost 40 million Americans experience sinusitis each year, at an annual health care cost of nearly $6 billion.

Treatment of acute sinusitis depends on the cause, and therapies can range from antibiotics for bacterial cases to oral corticosteroids for acute inflammation.

Untreated acute sinusitis can lead to more-serious infections or become a chronic condition. However, most cases are short-lived. When symptoms last less than four weeks, the sinusitis is considered acute.

Sinusitis develops when the mucous membranes of your upper respiratory tract — the nose, pharynx, sinuses and throat — become inflamed. The swelling obstructs the sinus openings and prevents mucus from draining normally. This creates a moist environment conducive to infection.

The cause of sinusitis is most often viral, such as the common cold virus, but the cause can also be bacterial or

fungal. When an upper respiratory tract infection persists longer than 14 days, it's more likely a bacterial cause than a viral cause.

There also are noninfectious triggers of acute sinusitis, including :

  • Allergies. Inflammation that occurs with allergies may block your sinuses.
  • Deviated nasal septum. A crooked septum — the wall between the nostrils — may restrict or block sinus passages.
  • Nasal polyps. These tissue growths may restrict the nasal passages.
  • Other medical conditions. The complications of cystic fibrosis, gastroesophageal reflux, or HIV and other immunodeficiency diseases may result in nasal blockage.

The blockages associated with sinusitis can worsen if you smoke or are exposed to air pollution, both of which can cause further irritation or inflammation.

When to seek medical advice :
If you have mild symptoms of sinusitis, try self-care. Drink plenty of fluids. Contact your doctor if your symptoms don't improve within a few days or if you have any of the following :

  • Fever greater than 100.5 F
  • Pain, swelling or redness on your face or around your eyes
  • Severe headache
  • Confusion
  • Stiff neck

Symptoms :
Signs and symptoms of acute sinusitis may include :

  • Facial pain
  • Fever
  • Pain, tenderness and swelling around your eyes, cheeks, nose or forehead
  • Erythema, or redness of the skin over the sinus caused by increased blood flow to the capillaries
  • Nasal congestion
  • Difficulty breathing through your nose
  • Reduced sense of smell or taste
  • Dental pain
  • Cough
  • Bad breath (halitosis)
  • Fatigue
  • Nausea
  • Sore throat

Diagnosis :
Diagnosis of acute sinusitis may involve gathering your medical history, undergoing a physical examination, and perhaps imaging studies or laboratory tests.

Your doctor will likely begin with a conversation about your symptoms and ask whether you've had a recent cold, suffer from allergies, smoke regularly or are exposed to secondhand smoke. These factors may precipitate or contribute to acute sinusitis.

During the physical examination, your doctor may feel for tenderness in your nose or throat and shine a light into your nasal passages to look for inflammation or secretions. This visual inspection will also help rule out physical conditions that trigger sinusitis, such as nasal polyps or other deformities.

Computerized tomography (CT) scans of your sinus cavities may be used to pinpoint areas of inflammation.

Complications :
If untreated, acute sinusitis may develop into a chronic condition. Chronic sinusitis, by definition, lasts longer than eight weeks. Complications of acute sinusitis include :

  • Acute Asthma. Acute sinusitis can trigger an asthma exacerbation.
  • Meningitis. The infection spreads to the lining of the brain.
  • Vision problems. Reduced vision or blindness if the infection spreads to your eye socket.
  • Aneurysms or blood clots. Infection can cause problems in the veins surrounding the sinuses, interfering with blood supply to your brain.

Many cases of sinusitis will subside without the need for antibiotics. Self-care techniques may speed along recovery.

If your doctor suspects you have a bacterial infection, he or she may prescribe a course of antibiotics such as amoxicillin (Amoxil, Trimox), doxycycline (Doryx, Monodox) or the combination drug trimethoprim-sulfamethoxazole (Bactrim, Septra). If the infection doesn't subside or if the sinusitis is recurrent, a different antibiotic may be warranted.

Your doctor may also recommend other treatment methods, depending on the underlying cause of the sinusitis. These include :

  • Treating an underlying allergic condition that contributes to sinusitis
  • Using prescription decongestants, nasal corticosteroid spray or oral corticosteroid pills to relieve stuffiness
  • Taking over-the-counter decongestants or pain relievers
  • Spraying a saline solution in your nose several times a day

Take these steps to reduce your risk of sinusitis :

  • Reduce risk of upper respiratory infections. Minimize contact with people who have colds. Wash your hands frequently with soap and water, especially before your meals. Get a flu shot every year.
  • Avoid cigarette smoke and polluted air. Tobacco smoke and air contaminants can irritate and inflame your lungs and nasal passages.
  • Use a humidifier. If the air in your home is dry, such as it is if you have forced hot air heat, adding moisture to the air may help prevent sinusitis. Be sure the humidifier is clean and free of mold.
  • Limit alcohol use. Consumption of alcohol can cause sinus passages to swell.
Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.
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