The Basics Substances which cause an allergic reaction are called allergens. Many allergens are substances that the body can tolerate without difficulty, but for people that are allergic, it's a different story.
Allergic reactions vary in intensity depending on the level of sensitivity of the individual.
Symptoms can be triggered by exercise, viruses, bacteria, smoke, dust, molds, pollen, pet dander, fumes, chemical detergents and cleaners, even changes in temperature and humidity. Environmental Control is critical in reducing allergens in the environment. Successful allergen avoidance will decrease one's exposure to allergens and thereby decrease or eliminate allergy symptoms. Approach your allergen avoidance program by setting prorities and making informed choices about products that will aid in this process. Remember, you don't need to totally eliminate exposure to all allergens, all of the time to obtain relief.