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Contents Name of the disease & terminologies Etiology History, signs and symptoms Physical examination Investigation Treatment according to allopathic medicine Other therapies Yoga practices Books and journals for reference
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Definition of Allergic Rhinitis Rhinitis is an inflammation of the mucous membranes of the nose. Allergic rhinitis involves reactions in the nasal mucosa from repeated allergen exposures that causes hypersensitivity. These reactions may be seasonal or perennial.
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INTRODUCTION Allergic rhinitis is a form of atopy characterized by an acute irritative inflammation of the mucous membranes of the eyes and upper respiratory passages accompanied by itching and profuse watery secretion, followed occasionally by bronchitis and asthma; the episode recurs annually at the same or nearly the same time of the year, in spring, summer, or late summer and autumn, caused by an allergic reaction to the pollen of trees, grasses, weeds, flowers, etc.
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Allergic rhinitis is a response of the immune system to airborne allergens, including mold, animal dander, dust mites and feathers. It occurs year-round or seasonally and symptoms are most like those of the common cold. Symptoms include stuffy nose, watery eyes, sneezing, coughing and runny nose. Allergic rhinitis is often referred to as hay fever and affects approximately 35 million people in the United States. Allergic rhinitis may predispose patients to the development of chronic rhinitis.
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If spring brings a stuffy nose, scratchy eyes and an extra sneeze tacked on to the usual "achoo!" – probably have hay fever (allergic rhinitis). Hay fever is the common name for an allergic response to specific substances in the environment. Seasonal hay fever, tree pollen, grasses or weeds may trigger the symptoms. If sensitive to indoor allergens such as dust mites, cockroaches, mold or pet dander, may have year-round symptoms.
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Seasonal Rhinitis Common allergens: Grass pollens Tree pollens Weed pollens Mold spores Symptoms include: Watery nasal drainage Nasal congestion Repetitive sneezing Itchy eyes, nose, ears, and throat Nose rubbing Allergic salute
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Perennial Allergic Rhinitis Show little or no seasonal variation Symptoms are intermittent or continuous throughout the year Watery nasal drainage and sneezing are less prominent than seasonal allergic rhinitis Nasal congestion is often the primary symptom
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SIGNS AND SYMPTOMS Signs and symptoms can range from mild to severe. If the condition is mild, may have brief, infrequent episodes of a runny nose and itchy, watery eyes. At the other extreme, may experience persistent, severe symptoms that last more than four days a week or longer than four weeks at a time. Chronic congestion may cause facial pressure and pain, alter the sense of taste and smell, and affect the appearance.
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The skin beneath the eyes may swell and turn blueish as develops what are sometimes called "allergic shiners." signs and symptoms usually develop immediately after exposed to specific allergy-causing substances (allergens). Common allergens include pollen, dust mites, cockroaches, mold and pet dander. Sometimes, exposure to irritants such as perfume and tobacco smoke may trigger or worsen symptoms.
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Runny nose Watery eyes Congestion Frequent sneezing Postnasal drip Cough Itchy eyes, nose, roof of mouth or throat Swollen, blue-colored skin under eyes (allergic shiners) Sleeplessness Fatigue Irritability Facial pressure and pain
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Chronic nasal congestion may produce…. Dry irritated or sore throat Snoring Pain around eyes Mouth breathing Orthodontic disturbances Frontal headaches/sinusitis Chronic cough Otitis media/possible hearing loss Altered smell and/or taste Sleep disturbance, with or without daytime fatigue Asthma exacerbation
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Systemic Symptoms of Allergic Rhinintis Some patients with allergic rhinitis experience: Weakness Discomfort or uneasiness Irritability Fatigue Difficulty concentrating Decreased appetite
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It may be difficult to distinguish hay fever from a cold. Here's how to tell the difference:
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Allergic triggers Dust mites Carpeting, upholstered furniture Animals Furry or feathered Pollens PE, recess Cockroaches Molds Foods CAUSES
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Dust mites are one of the most common allergens throughout the world. They grow best indoors in warm, humid environments. Their growth is hindered in very dry climates. Carpeting and upholstered furniture are the major sources in the classroom, but mattress and pillows are the major source in the home. Cats and dogs are the most common cause of pet allergies. In cats, the allergen is present in skin secretions and saliva, and isn’t part of the hair. In the case of the dog, the allergen is contained in skin scales and hair. Pet allergens are very tiny particles and they float in the air for prolonged periods of time, and stick to whatever they contact
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Pollens are usually encountered outdoors. The types of pollen varies by the time of year. Tree pollen is usually present in the early spring, grass pollen in the late spring and early summer, and weed pollens in late summer and early fall. Children participating in PE or recess during high pollen days can have allergy problems
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The severity of hay fever tends to diminish slowly, often over decades. If presence of hay fever, may react to one or more common inhaled allergens. No matter what allergic to, the underlying cause of the misery is the same. During a process called sensitization, the immune system mistakenly identifies the allergen as an invader and produces an antibody against it called immunoglobulin E, or IgE.
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The next time if exposed to the allergen, the immune system launches an allergic reaction. The IgE antibodies trigger the release of an inflammatory chemical called histamine, which swells the mucous membranes in the nose, sinuses and eyes, causing a runny nose, watery eyes and sneezing.
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RISK FACTORS Family history of allergies Male sex Firstborn Exposure to cigarette smoke in the first year of life Exposure to indoor allergens, such as dust or pet dander
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WHEN TO SEEK MEDICAL ADVICE Occasional signs and symptoms of hay fever and haven't found relief from using over-the-counter medications, see the doctor to design a treatment program. Also see the doctor if problems are persistent or have side effects from over-the-counter medications. May need an allergy specialist for an accurate and complete diagnosis.
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SCREENING AND DIAGNOSIS Doctor will ask detailed questions about the personal and family medical history, signs and symptoms, and usual way of treating them. Doctor also performs a physical examination to look for additional clues about the causes of signs and symptoms. Medical history and physical exam may provide enough information for the doctor to discuss the diagnosis and treatment.
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But if the doctor is uncertain of that allergies, or suspects that having allergies and needs more information about the possible causes, he or she may recommend to have skin tests. During skin testing, small amounts of purified allergen extracts are pricked into the skin of the arm or upper back and observed for signs of an allergic reaction. A blood test can also identify possible allergens.
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A small area of swelling with surrounding redness is typical of a positive allergy skin test
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COMPLICATIONS Even uncomplicated hay fever can affect the quality of life. Congestion and constant nose blowing can cause discomfort and embarrassment. The resulting sleeplessness, fatigue and irritability can also affect the performance at work or school. But hay fever may increase the risk of developing more serious allergic conditions such as asthma — a chronic condition that occurs when the main air passages of the lungs, the bronchial tubes, become inflamed.
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Hay fever and asthma often occur together. If presence of asthma, may have signs and symptoms such as difficulty breathing, shortness of breath, a tight feeling in the chest, coughing and wheezing. People with hay fever may also have eczema (also called dermatitis) – an inflammation of the skin characterized by swollen, reddened and itchy skin. In particular, atopic dermatitis often occurs with allergies and frequently runs in families in which family members have asthma, hay fever or both.
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Prolonged sinus congestion due to hay fever may increase the susceptibility to sinusitis — an infection or inflammation of the membrane that lines the sinuses. Sinusitis causes pain, tenderness and swelling around the eyes, cheeks, nose or forehead and can be either acute or chronic. In children, hay fever often is a contributing factor to middle ear infection (otitis media), which causes pain, fever and fluid buildup in the middle ear.
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TREATMENT After the doctor has identified what allergy triggers the symptoms, he or she will help to develop a plan to avoid these substances. In some cases, avoidance alone can effectively control the hay fever problems. Doctor may also prescribe an oral medication, a nasal spray or eyedrops – alone or in combination – to decrease the signs and symptoms.
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Allergic Rhinitis Therapy Avoidance of triggers Medications Allergy shots
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Avoidance of Triggers No carpeting or upholstered furniture No furry or feathered pets Perform maintenance chores requiring use of irritating chemicals/cleaners when children not present Maintain heating/cooling systems No smoking
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Medications Nasal corticosteroids. Antihistamines. Decongestants. Cromolyn sodium. Leukotriene modifier. Nasal atropine. Immunotherapy.
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PREVENTION Reducing a child's exposure to allergy-causing substances may help delay or prevent the onset of hay fever. This may be especially true in children with a family history of allergies. For reasons that aren't completely understood, allergic conditions such as hay fever have become increasingly common in Western countries.
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Under normal circumstances, the immune system produces antibodies to defend the body against harmful organisms such as bacteria, viruses and parasites. In fact, some exposure to these organisms may be necessary to stimulate the immune system's proper development. But in an environment where disinfectants and antibiotics are commonly used, such organisms may be in short supply. Immune system may instead produce antibodies against usually harmless substances such as pollen, mold and pet dander, resulting in the development of allergies.
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Researchers have found that children are less likely to develop allergies if they attend child care centers, live in homes with older siblings or are raised on farms. In such environments, children are exposed to more germs. As researchers learn more about the immune system, they may suggest that a more judicious use of disinfectants and antibiotics may help prevent the development of allergies.
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Allergic rhinitis an...
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it is an allergic inflammation of the nasal airways.
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