It's a common notion that rugs and carpets can worsen nasal allergies and increase the risk of asthma attacks. While this may be true for most cases, there's hope for asthmatic people who love to adorn their homes and workplaces with rugs. First off, let us try to understand how rugs have gained a bad reputation for allergic people. Airborne allergens are all around us -- dust, pollen and microorganisms.…