how hay fever is caused?
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But unlike a cold, hay fever isn't caused by a virus. Hay fever is caused by an allergic response to outdoor or indoor allergens, such as pollen, dust mites, or tiny flecks of skin and saliva shed by cats, dogs, and other animals with fur or feathers (pet dander).
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When you breathe in the scent from things like candles, soaps, laundry detergents, and even some tissues, it can trigger your hay fever symptoms. Before you know it, you may sneeze, cough, and get a stuffy, runny, or itchy nose. Headaches and rashes aren't out of the question, either.
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When a person has rhinitis, the inside of the nose becomes inflamed, or swollen, causing cold-like symptoms, such as itchiness, blocked nose, runny nose, and sneezing. Allergic rhinitis can be caused by an allergy. In other cases, it is called nonallergic rhinitis.
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This can cause cold-like symptoms. Many people have allergies to both indoor and outdoor substances, such as pet dander, pollen, and dust mites. Allergies can be seasonal or last all year long. They can cause an irritating inflammation in your nose that may give you a tickly, itchy feeling.
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['Nasal airway problems, especially nasal congestion caused by allergies or the common cold.', 'Upper airway infection, such as sinus infection, tonsillitis, or sore throat.']
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Hives can occur when too much histamine is released into the body by the immune system. This often is caused by an allergic reaction. Allergies are thought to be the major cause of hives.
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The noticeable difference between hay fever and a cold is the nasal discharge. Hay fever sufferers will only experience clear discharge, whereas a cold usually produces green or yellow discharge. Hay fever sufferers also don't experience fevers or body aches and pains.
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Allergies. Hay fever or allergic rhinitis is a common cause of epiphora. This happens when your body reacts to harmless substances such as pollen, dust, and pet dander. Your immune system makes antibodies to these allergens, triggering an inflammatory response that causes red, swollen, and watery eyes.
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Nasal spray may trigger migraine. NEW YORK (Reuters Health) - People with hay fever — more accurately termed allergic rhinitis — may find themselves with a migraine after they use a nasal steroid spray to relieve their stuffy noses.
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Hay fever signs and symptoms can include: Runny nose and nasal congestion. Watery, itchy, red eyes (allergic conjunctivitis) Sneezing.
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In addition to the symptoms listed above, people who suffer from both asthma and allergic rhinitis are likely to experience asthmatic symptoms during an attack of hay fever. Most commonly these include a tight feeling in the chest, wheezing and shortness of breath.
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Signs and symptoms of hay fever If your child has hay fever, they may have: frequent bouts of sneezing. a runny nose. blocked nose (either one or both nostrils)
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Increased moisture in the air, especially in high temperatures, can trigger bronchospasm and asthma symptoms. Other weather conditions, such as cold, dry air, can also lead to asthma flares. Monitoring humidity and air quality are helpful to prevent humidity-related asthma symptoms from developing.
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Ragweed pollen is a primary cause of hay fever (allergic rhinitis). For those who are allergic to ragweed, exposure to the plant pollen through touch or airborne contact can also cause a rash. You might notice itchy red streaks on the skin or swelling of the eyelids.
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Steroid nasal sprays containing cortisone, such as Inflanaze, Nasonex and Avamys, are the most effective treatments for hay fever and prevent bacterial and viral infections. They are available on prescription only. The third phase, a sinus infection, is the most serious.
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Pollen showers When the sun is out, hot air rises and carries pollen away with it. When the air cools again at night, the pollen falls back down to the earth again. This is the process that is giving you hay fever at night.
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Allergies like hay fever can cause a chronic dry cough. If you're sensitive to dust, pet dander, pollen, mold, or other common allergens, then your allergy symptoms may include a cough. Allergies can also worsen your asthma symptoms, causing them to become severe.