There are also several nutritional supplements that have powerful antihistamine properties, including vitamin E, quercetin, bromelain, and colostrum. Vitamin E is a powerful antioxidant and natural antihistamine that has been shown to strengthen your immune system and its response to attack. Vitamin E is also a natural blood thinner. Therefore, if you are taking an anticoagulant, such as warfarin, check with your doctor before using vitamin E.
Quercetin has anti-inflammatory and antihistamine properties, which makes a favorite natural treatment among allergists. It is believed to work by controlling the release of histamine and stabilizing cell membranes, making them less reactive to allergens.
A natural anti-inflammatory in its own right, bromelain also helps your body absorb quercetin. This pineapple derivative reduces inflammation in your respiratory system while also decreasing the amount and thickness of mucus in your respiratory tract.
Lastly, colostrum—the pre-milk all women produce immediately after the birth of a baby—is rich in immune-building and immune-enhancing properties. Colostrum contains several immunoglobulins, antibodies that help boost your immune system, as well as