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Vaccines, including flu shots, deliver either live or dead viruses, short-circuiting your body's normal front-line immune defense system. If your immune system is weak or out of balance, you could have serious health consequences from the flu shot.

Tea tree oil, native to Australia, is a natural way to treat and control recurring fungal infections.

We are constantly exposed to pathogens like influenza (flu) and common cold viruses. Fortunately, there are ways to prevent catching these illnesses (other than the flu shot), and natural ways to treat them and get well faster.

Natural therapies are usually the best therapies for stopping the common cold and flu. Try these options the next time you're feeling under the weather.

Dr. David Williams offers a simple solution to congestion: eucalyptus oil.

Studies show that taking ginseng before getting a flu shot can significantly improve your immune system reaction.

Taking elderberry extract at the first sign of the flu can help inactivate the virus.

Echinacea helps accentuate the actions of your immune system. When it doesn’t work, it is often an indication of other problems. These can include decreased thyroid function (hypothyroidism), low potassium levels, and heavy metal toxicity.

One of the most important ways to protect against the common cold and the flu (including the H1N1 virus) is to bolster your own immune system using these natural supplements.

Get Dr. Williams best advice in these special reports on such topics as heart disease, cancer, arthritis, memory loss.

While basic prevention measures (like hand washing) are helpful, there's something much more powerful you can do to keep the common cold, seasonal flu, and H1N1 at bay—and that's to bolster your own immune system.

The odds are overwhelming that more drug-resistant bacteria will continue to emerge in coming years. Grapefruit seed extract is just one of the tools you’ll find to be helpful in fighting them.

For those occasions when you find yourself overwhelmed by a bug, you don’t have to look for a doctor to write you a prescription for the latest $150 antibiotic. Instead, you can help your body do what it does naturally—fight off germs.  Here’s a quick rundown that you might want to print out and keep in your medicine chest.

Dr. David Williams answers your questions about immune health and shares his recommendations for preventing illness.

Efforts should be taken to improve the function of the lymphatic system in every health problem. No drug exists that has the ability to improve lymphatic flow; however, the job can easily be handled through the topical application of castor oil.

Learn the symptoms of the common cold and flu.

For optimal digestive health, taking a probiotic supplement can be key. Discover the specific ways your digestive system will benefit from supplementing with probiotics.