Allergies can be topical, respiratory, or digestive, and result in an immune system overreaction to a substance. This can release histamines, which cause wheezing, rashes, sneezing, vomiting, and even anaphylactic shock. People can be allergic to specific foods, plants, animals, and chemicals. Human studies are lacking, and more research is necessary on the anti-allergy potential of various herbs.
Hay fever is a seasonal allergy to pollens and fungi in the air, and can irritate the nose, throat, and eyes.
By: Kathy Sadowski
Last Updated: 9/16/19