http://asthma.about.com/b/2008/09/30/drug-free-natural-alternative-blocks-allergens.htm Airborne allergens are the most common asthma and allergy triggers. These include things like tree, grass, and weed pollen, including the currently active ragweed pollen, mold spores, dust mites, and animal dander. These tiny allergens float freely far and wide on air currents. You breathe them into your airways and that triggers the immune system chain of events that results in allergy symptoms and asthma symptoms.
The good news is there are many effective medicines available to deal with these symptoms, and in some cases to even prevent them. The bad news is, all of these medicines are man-made chemicals that carry a certain amount of risk of unexpected effects. Asthma and allergy medicines are considered quite safe, overall. Still, the risk of side effects is there.
Now, there is a new treatment from Chloraseptic that claims it can block allergens from getting into your airways in the first place. It's called Allergen Block (or Little Remedies for kids) and it's a clear gel you apply to your skin, around your nostrils and between your nose and upper lip.
The gel dries quickly, forming an invisible barrier that keeps allergens from being inhaled into your nose. How can a gel do such a thing? Well, it seems the gel is positively-charged, while allergens are negatively-charged. This opposition in the charges ends up repelling the allergens from the Allergen Block-protected areas. And without allergens -- no symptoms, unless you also have triggers that are not airborne allergens, such as perfumes or smoke. Allergen Block doesn't protect from irritants.
Allergen Block also works only in the nose for inhaled allergens. It won't protect you from eye allergies or skin allergies. Still, this product has no medicine in it, so it is perfectly safe to use, even for kids. It sounds as though it could be the ultimate natural allergy relief product.