Allergies, according to the Mayo Clinic, are your body's reaction to something it perceives as foreign, such as pollen, pet dan
der or medication. In response to the perceived threat, your body releases histamines, which cause a chain of events that are meant to stop the foreign invader from causing harm. Unfortunately, minor allergies can cause chronic histamine release, leading to a runny nose, sneezing, itching, coughing, and headaches. Certain allergens, like dust and pollen, generally can't be avoided, but you can use natural substances like garlic to decrease or stop reacting in a way that makes you ill.
The University of Maryland says that not all garlic supplements have the same concentration of garlic and may not share the same effectiveness. Look for a supplement that specifically contains "stabilized allicin," which has beneficial substances that are more easily absorbed by your body. These sulfur-based substances have been found to help prevent cardiovascular disease and also have other health-improving benefits. Using a garlic supplement can make it easier for you to use garlic to treat your allergies, without the odor.