Allergies can develop at any age, possibly even in the womb. They generally occur in children but could possibly cause the symptoms for the first time in adulthood. Asthma may last long in adults while nasal allergies tend to diminish in old age.
Why, might you ask, some people are sensitive (sensitive) to specific allergens were most insensitive? Why are people allergic to produce more IgE than those not allergic? It seems the main factor that distinguishes it is the offspring. For some time, has been known that allergic conditions tend to be grouped / clustered within families. Your own risk to develop allergy associated with allergic history of your parents. If none of your parents are allergic, your chances of getting allergies is about 15%. If a parent has allergies, your risk rises to 30% and if both are allergic, your risk is greater than 60%.
Although you may inherit a tendency to develop allergies, you may in fact have never had symptoms. You also should not inherit the same allergies or diseases that are the same as your parents. Still not clear what determines what ingredients that trigger allergic reactions in people. Moreover, diseases which may be or how much weight can develop symptoms that may occur, is unknown.
Other major pieces of the puzzle is the environmental allergies. It is clear that you must have a genetic tendency and in exposure to the allergen so that the developing allergies. In addition, more intense and over and over and over exposure to the allergen and occur earlier in life, are more likely to develop allergies.
There are other important influences that may conspire to cause allergic conditions. Some of these include smoking, pollution, infection, and hormones.
General conditions of Allergy and Gejal-Symptoms and Warning Alerts
Body parts that tend to react to allergies include the eyes, nose, lungs, skin, and stomach. Although a variety of allergic diseases can arise are different, they all come from the response / excessive immune reactions to foreign substances in people who are sensitive. The following brief descriptions will present an overview of allergic disorders are common.
Allergic rhinitis
Allergic rhinitis ("hay fever") is the most common of the allergic diseases and refers to seasonal nasal symptoms caused by pollen. Year-round allergic rhinitis or perennial allergic rhinitis (perennial) is generally caused by allergens in the home / room, such as mites (dust mites), animal dander, or molds. It can also be caused by pollen. The symptoms come from inflammation of the tissue that lines the inside of the nose (lining or mucous membranes) after allergens are inhaled. Adjacent areas, such as the ears, sinuses, and throat may also be involved. The symptoms most commonly include:
- Runny nose
- Nose clogged
- Sneezing
- Nose itch
- Ear, ear and throat are itchy
- Post nasal drip
In 1819, a British physician, John Bostock, hay fever was first described by detailing the symptoms of seasonal nasal itself, which he called "summer catarrh". The condition is called hay fever because it is caused by "new hay."
Asthma
Asthma is a respiratory problem that comes from inflammation and spasm (spasm) of the lung airways (bronchial tubes). Inflammation causing narrowing of the airways, which restrict air flow into and out of the lungs. Asthma most often, but not always, associated with allergies. Common symptoms include:
- Shortness of Breath
- Wheezing (Wheezing)
- Cough
- Chest tightness
Eye-Eye Allergies
Spy allergy (allergic conjunctivitis) is inflammation of the tissue layers (membranes) that cover the surface of the eyeball and the undersurface of the eyelids.
Inflammation occurs as a result of allergic reactions and may produce the following symptoms:
- Redness under the eyelids and eyes of the whole
- Watery eyes and itchy eyes
- Swelling of the membranes
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