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Allergic diseases, including allergic rhinitis, atopic dermatitis, atopic asthma, and food allergy affect approximately 20 percent of people and are a leading cause of chronic disease worldwide. Allergic rhinitis refers to an immune-mediated inflammatory response of the nasal passages caused by inhaled allergens. Allergies are on the rise as a result of environmental factors, pollution and other conditions.
Allergic symptoms can cause a variety of bothersome symptoms such as sneezing, itching, nasal congestion, runny nose and postnasal drip. These symptoms can result in patient discomfort and may range from mild to severe. The length of time that an individual may experience symptoms also varies. The ARIA (Allergic Rhinitis and Its Impact on Asthma) report published in collaboration with the World Health Organization defines persistent allergic rhinitis as symptoms experienced for more than four days a week and for more than four weeks a year. Intermittent allergic rhinitis is defined as symptoms experienced for less than four days a week or for less than four weeks a year. Fortunately, allergy symptoms may be relieved, and like any condition, the sooner they are treated the better. Your doctor can advise on the best treatment for your symptoms.