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<\/figure><\/div>\n\n\nAllergic rhinitis typically results from two conditions: family history\/genetic predisposition to allergic disease and exposure to allergens. Allergens are substances that produce an allergic response.<\/p>\n\n\n\n
Children are not born with allergies but develop symptoms upon repeated exposure to environmental allergens. The earliest exposure is through food \u2013 and infants may develop eczema, nasal congestion, nasal discharge, and wheezing caused by one or more allergens (milk protein is the most common). Allergies can also contribute to repeated ear infections in children. In early childhood, indoor exposure to dust mites, animal dander, and mold spores may cause an allergic reaction, often lasting throughout the year. Outdoor allergens including pollen from trees, grasses, and weeds primarily cause seasonal symptoms.<\/p>\n\n\n\n
The number of patients with allergic rhinitis has increased in the past decade, especially in urban areas. Before adolescence, twice as many boys as girls are affected; however, after adolescence, females are slightly more affected than males. Researchers have found that children born to a large family with several older siblings and day care attendance seem to have less likelihood of developing allergic disease later in life.<\/p>\n\n\n\n
What Are Allergic Rhinitis Symptoms?<\/h2>\n\n\n\n
Symptoms can vary with the season and type of allergen and include sneezing, runny nose, nasal congestion, and itchy eyes and nose. A year-long exposure usually produces nasal congestion (chronic stuffy nose).<\/p>\n\n\n\n
In children, allergen exposure and subsequent inflammation in the upper respiratory system cause nasal obstruction. This obstruction becomes worse with the gradual enlargement of the adenoid tissue and the tonsils inherent with age. Consequently, the young patient may have mouth-breathing, snoring, and sleep-disordered breathing such as obstructive sleep apnea. Sleep problems such as insomnia, bed-wetting, and sleepwalking may accompany these symptoms along with behavioral changes including short attention span, irritability, poor school performance, and excessive daytime sleepiness.<\/p>\n\n\n\n
In these patients, upper respiratory infections such as colds and ear infections are more frequent and last longer. A child\u00e2\u20ac\u2122s symptoms after exposure to pollutants such as tobacco smoke are usually amplified in the presence of ongoing allergic inflammation.<\/p>\n\n\n\n
What Are the Common Types of Rhinitis?<\/h2>\n\n\n\n
Allergic Rhinitis:<\/strong> This condition occurs when the body\u2019s immune system over-responds to specific, non-infectious particles such as plant pollens, molds, dust mites, animal hair, industrial chemicals (including tobacco smoke), foods, medicines, and insect venom. During an allergic attack, antibodies, primarily immunoglobin E (IgE), attach to mast cells (cells that release histamine) in the lungs, skin, and mucous membranes. Once IgE connects with the mast cells, a number of chemicals are released. One of the chemicals, histamine, opens the blood vessels and causes skin redness and swollen membranes. When this occurs in the nose, sneezing and congestion are the result.<\/p>\n\n\n\n Seasonal allergic rhinitis<\/strong> or hayfever occurs in late summer or spring. Hypersensitivity to ragweed, not hay, is the primary cause of seasonal allergic rhinitis in 75 percent of all Americans who suffer from this seasonal disorder. People with sensitivity to tree pollen have symptoms in late March or early April; an allergic reaction to mold spores occurs in October and November as a consequence of falling leaves.<\/p>\n\n\n\n Perennial allergic rhinitis<\/strong> occurs year-round and can result from sensitivity to pet hair, mold on wallpaper, houseplants, carpeting, and upholstery. Some studies suggest that air pollution such as automobile engine emissions can aggravate allergic rhinitis. Although bacteria is not the cause of allergic rhinitis, one medical study found a significant number of the bacteria Staphylococcus aureus in the nasal passages of patients with year-round allergic rhinitis, concluding that the allergic condition may lead to higher bacterial levels, thereby creating a condition that worsens the allergies.<\/p>\n\n\n\n Patients who suffer from recurring bouts of allergic rhinitis should observe their symptoms on a continuous basis. If facial pain or a greenish-yellow nasal discharge occurs, a qualified ear, nose, and throat specialist can provide appropriate sinusitis treatment.<\/p>\n\n\n\n Non-Allergic Rhinitis:<\/strong> This form of rhinitis does not depend on the presence of IgE and is not due to an allergic reaction. The symptoms can be triggered by cigarette smoke and other pollutants as well as strong odors, alcoholic beverages, and cold. Other causes may include blockages in the nose, a deviated septum, infections, and over-use of medications such as decongestants.<\/p>\n\n\n\n If your child\u2019s cold-like symptoms (sneezing and runny nose) persist for more than two weeks, it is appropriate to contact a physician.<\/p>\n\n\n\n Emergency treatment is rarely necessary except for upper airway obstruction causing severe sleep apnea or an anaphylactic reaction caused by exposure to a food allergen. Treatment of anaphylactic shock should be immediate and requires continued observation and care.<\/p>\n\n\n\n The doctor will first obtain an extensive history about the child, the home environment, possible exposures, and progression of symptoms. Family history of atopic\/allergic disease and the presence of other disorders such as eczema and asthma strongly support the diagnosis of allergic rhinitis. The physician will seek a link between the symptoms and exposure to certain allergens.<\/p>\n\n\n\n The physician will examine the skin, eyes, face and facial structures, ears, nose, and throat. In some cases, a nasal endoscopy may be performed. If the history and the physical exam suggest allergic rhinitis, a screening allergy test is ordered. This can be a blood test or a skin prick test. In most children it is easier to obtain a blood test known as the RadioAllergoSorbent Test or RAST. This test measures the amount of specific Immunoglobulin E antibodies (IgE) in the blood responding to various environmental and food allergens.<\/p>\n\n\n\n The skin test results, often immediately available, may be affected by the recent use of antihistamines and other medications, dermatologic conditions, and age of the patient. The blood test is not affected by medication, and results are usually available in several days.<\/p>\n\n\n\n The most common treatment recommendation is to have the child avoid the allergens causing the allergic sensitivity. The physician will work with caregivers to develop an avoidance strategy based on the nature of the allergen, exposure, and availability of avoidance measures.<\/p>\n\n\n\n Cost and lifestyle are important factors to consider. For mild, seasonal allergies, avoidance could be the most effective course of action. If pet dander is the offender, consideration should be given to removing the pet from the child\u2019s environment.<\/p>\n\n\n\n Severe symptoms, multiple allergens, year-long exposure, and limited resources for environmental control may call for additional treatment measures. Nasal saline irrigations, nasal steroid sprays, and non-sedating antihistamines are indicated for symptom control. Nasal steroids are the most effective in reducing nasal symptoms of allergic rhinitis. A short burst of oral steroids may be appropriate for some patients with severe symptoms or to gain control during acute attacks.<\/p>\n\n\n\n If symptoms are severe and due to multiple allergens, the child is symptomatic more than six months in a year, and if all other measures fail, then immunotherapy (IT) (or desensitization) may be suggested. IT is delivered by injections of the allergen in doses that are increased incrementally to a maximum that is tolerated without a reaction. Maintenance injections can be delivered at increasing intervals starting from weekly to bi-weekly to monthly injections for up to three to five years. Children with pollen sensitivities benefit most from this treatment. IT is also effective in reducing the onset of pollen-induced asthma.<\/p>\n\n\n\nWhen Should My Child See a Doctor?<\/h2>\n\n\n\n
What Happens During a Physician Visit?<\/h2>\n\n\n\n
How Is Allergic Rhinitis Treated?<\/h2>\n\n\n\n