Allergies are especially unique in the medical field because they differ among patients. An allergy is a specific immunologic reaction to a normally harmless substance, one that does not bother most people. People with allergies are often sensitive to many substances. Common allergens that cause allergic reactions include seasonal, outdoor allergens like tree, grass, and weed pollen, and year-round indoor allergens including dust particles, animal dander, and indoor mold. Most people usually can be cured by various treatments.
Many people are curious why they are allergic and others are not. The answer to this is that allergies are genetic in almost all cases. Scientists and researchers believe that people inherit a tendency to be allergic, although not to any specific allergen. Children are much more likely to develop allergies if their parents have allergies. Interestingly, people with year-round (perennial) allergies commonly develop the problem as adults, and are more likely......
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