Nettle has been used for centuries to treat allergy symptoms, particularly hayfever which is the most common allergy problem. It contains biologically active compounds that reduce inflammation. Dr. Andrew Wiel M.D. author of Natural Health/ Natural Medicine says he knows of nothing more effective than nettle for allergy relief. And his statement is backed up by studies at the National College of Naturopathic Medicine in Portland, Oregon. Decongestants, antihistamines, allergy shots and even prescription medications such as Allegra and Claritin treat only the symptoms of allergies and tend to lose effectiveness over a period of time. They can also cause drowsiness, dry sinuses, insomnia and high blood pressure. Nettle has none of these side effects. It can be used on a regular basis and has an impressive number of other benefits most notably as a treatment for prostate enlargement.