Ephedra contains ephedrine and pseudoephedrine. The latter is a commonly used over-the-counter decongestant. Though the whole herb is safer than the drug, at higher doses, ephedra can produce similar side effects: elevated blood pressure, palpitations, nervousness, insomnia and appetite suppression.
Licorice soothes irritated membranes and acts as an expectorant. It also has anti-inflammatory and anti-allergy actions similar to those of corticosteroids, but with far fewer side effects. Because it can cause retention of water and sodium and loss of potassium, don't take licorice for more than a month without medical supervision. Avoid it if you're pregnant, have high blood pressure or any disease of the thyroid, kidney, liver or heart.
Reishi mushroom strengthens immunity and, some say, has anti-allergy action. Chinese doctors use it to treat asthma and other allergic disease. It's available in capsules, tablets, syrups and teas.
Quercetin, found in garlic and onions, acts as a natural antihistamine and antioxidant. Other sources include red grapes, grapefruit, apples and black tea. Although scientists have yet to investigate quercetin's ability to relieve hay fever, it won't hurt to eat plenty of these foods. Proanthocyanidin oligomers found in grapes, blueberries, tea, black currants, onions, legumes and parsley reduce inflammation, act as potent antioxidants and support the collagen and elastin in tissues.
Copyright 2000 Universal Press Syndicate
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