Echinacea: Good for What Ails You

If you've ever seen gardens with purple-pink flowers that bloom in the late summer to mid-autumn, you've seen echinacea. It's a favorite of gardeners because of its tolerance to the elements. It also attracts butterflies! But it's more than just ornamental. While you may recognize it by the common name of "purple coneflower," it's also one of America's most popular herbal treatements.

How Is It Used?

Echinacea (pronounced ECK-in-AY-zhuh) has been used for generations to treat everything from snake bites to toothaches. Nineteenth century herbalists recognized its value as an immune system booster, and also used it to help speed wound healing, reduce inflammations, treat colds and flu, and fight infections.

During the early 20th century, echinacea was a best-seller in America and was used for a variety of maladies. But around 1930, modern medicine dismissed it as having no value and it remained largely unused until the 1980s, when there was renewed public interest in herbal remedies. Today, it's among the best-selling herbal extracts. The two most popular varieties are Echinacea purpurea, which has larger, darker purple petals; and Echinacea angustifolia, which has narrower, paler petals.

Different studies show different results, but there's evidence that echinacea helps to relieve cold and flu symptoms and aids the immune system. It's recommended that you begin taking it at the first sign of a cold or flu, as it works best as a preventative rather than a cure. Better yet, take echinacea at the beginning of cold and flu season to boost your immunity.

Echinacea is also recommend to combat seasonal spring allergies and sinus problems, but start taking it in February -- before allergens are in the air. It's important to note, however, that it shouldn't be taken continuously. To maintain a healthy immune system, it's best use it on a "three weeks on, one week off" regimen because the body seems to adjust and the herb loses its effectiveness. During the week you're not taking it, your immune system will adapt and increase in strength.

How Safe Is It?

Echinacea has an excellent safety record: After hundreds of years of use, no serious side-effects have been reported other than rare allergic reactions in sensitive individuals. Echinacea works not by destroying germs but by energizing your own immune system. And because it engages your body's natural resources, negative side-effects (such as sometimes occur with synthetic antibiotics) are not an issue.

Much of echinacea's medicinal value is found in the root, with the Augustifolia root having slightly more medicinal value than the Purpurea root, which is something to remember when purchasing. Because of its ability to boost the immunity system, echinacea may also be recommended to overcome stress, malaise, or general weakness.

There is some question, however, as to whether it's safe for people with auto-immune diseases. Because the evidence is inconclusive, it's best to avoid it if you are HIV-positive or have an autoimmune disease, such as lupus, multiple sclerosis or scleroderma. For most of us, though, echinacea is considered generally safe, although some digestive systems may need time to adjust to it. (It can cause mild nausea in rare cases.)

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