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What is bronchitis?
Bronchitis is an inflammation of the lining of the bronchial tubes, the main air passages from the throat to the lungs. Bronchitis can be acute or chronic. Sometimes, it is due to allergies.
Acute bronchitis usually follows a cold or flu and can linger for weeks, but in most cases ultimately goes away on its own.

Chronic bronchitis is a type of chronic obstructive pulmonary disease (COPD), a respiratory disorder, and typically occurs among people who smoke cigarettes (or are former smokers) or who have long-term exposure to dust or to fumes from ammonia, strong acids, chlorine, hydrogen sulfide, sulfur dioxide or bromine. Chronic bronchitis is a serious condition that may come and go but never disappears completely.

What are the symptoms of bronchitis?
The usual symptoms are a deep, raspy, painful cough, shortness of breath and chest tightness. You may also cough up yellow or greenish mucus. Acute bronchitis usually starts with a sore throat, runny nose or sinus infection and then spreads to the airways. Acute bronchitis can last for weeks and may leave you with a lingering dry cough. However, the inflammation usually goes away on its own. If the bronchitis is being caused by bacterial infection (which often follows a viral cold or flu) - it generally produces a lot of phlegm and mucus, often dark yellow, green, or rusty brown in color. You'll also have a fever. Your physician can confirm the diagnosis with a sputum culture.

With chronic bronchitis, the inflamed bronchi produce mucus, leading to a cough. You may have trouble getting air in and out of your lungs. The prolonged coughing can be extremely debilitating, causing exhaustion, insomnia, loss of appetite and in severe cases, even broken ribs.

What are the causes of bronchitis?
The same viruses that cause colds usually are to blame for acute bronchitis, which is why bronchitis so often develops as a complication of the flu.

The most common cause of chronic bronchitis is inflammation brought on by cigarette smoking, but breathing in dust or fumes for long periods of time can also be to blame.

What is the conventional treatment for bronchitis?
Conventional physicians immediately employ antibiotics to treat bronchitis, but that is not a good idea, unless there is proof or good reason to suspect that a bacterial infection is present. Bacterial bronchitis or a secondary bacterial infection following a cold or flu will generally cause a fever and produce a lot of phlegm and mucus that often is colored dark yellow, green, or rusty brown. A sputum culture will confirm the diagnosis. Other treatments are rest and fluids and, sometimes, non-absorbable steroid inhalers.

What therapies does Dr. Weil recommend for bronchitis?
•Inhalation of steam containing sage or eucalyptus. Warm steam soothes the irritated lining of the bronchial tubes, loosens secretions, promotes healing and, with aromatic herbs, discourages secondary bacterial growth. Use steam as often as possible during waking hours.
•Treat unproductive bronchial coughs (those that do not cause you to bring up much phlegm) with a cough suppressant. Start with tincture of mullein (Verbascum thapsus). Take a teaspoon in a little warm water every four hours. If that doesn't help, take an over-the-counter (OTC) cough medicine containing dextromethorphan, a safe and effective drug. If this doesn't work either, ask your doctor to prescribe a narcotic-based cough suppressant such as codeine or Hycodan. Narcotics are very effective for this purpose and quite safe if used as directed for a week or 10 days. They may cause drowsiness and constipation.
•Don't suppress productive coughs, because they are helping to expel products of inflammation from the bronchial system. Treat them with steam, tincture of mullein and OTC expectorant cough medications containing guaifenesin. Prescription expectorants contain potassium iodide, which is even more effective (A good brand is Pima Syrup). Some individuals have allergic reactions to iodides, so use them cautiously the first time. Freshly prepared horseradish, hot mustard and wasabi (Japanese horseradish) all help liquefy bronchial secretions. Eat as much of these as you can tolerate.
•If you smoke, stop. Avoid secondhand smoke as well.
•With chronic bronchitis, eliminate milk and milk products. The milk protein, casein, can irritate the immune system and stimulate mucus production.
•Take astragalus (Astragalus membranaceous), a Chinese tonic herb that enhances immune function.It is available as a tincture, capsule and tablets and you can get whole dried slices of root that can be added to soups. Look for products standardized to 16 percent polysaccarides. The usual dose is two capsules or tablets twice a day, unless the label on the product directs otherwise.