What is an allergy?
allergy is the reaction of the immune system to the substance that the body perceives as harmful. Although the substance called allergen may be harmless, the abnormal immune system will respond to contact, inhalation or ingestion of allergen as an attack. The body's response to an allergen known as an allergic reaction can be as less as sneezing or serious as a potentially fatal system system. Common substances that create allergy include antibiotics, nuts, plants, pet and insects. Low fever, sneezing, nasal overload and pain or scratched neck may indicate allergies. Many reactions to chemical allergens such as latex or parabens include bumpy or itchy skin rashes called contact dermatitis. Serious reactions should be treated with rapid medical care and include swelling, asthmatic attacks or narrowing the airways.
What causes allergies is the task still escapes science, although certain factors are generally responsible. Many types of allergies have been dramatically increased since the mid -20th century, whatIt led some experts to indicate that increased environmental pollution made immune systems more hypersensitive to attacks. One hypothesis suggests that high standards of hygiene in the modern world reduce the exposure of the child infection and allergens during key developmental phases, which increases the hypersensitive immune system more likely.
remains unknown why allergies develop in one person and not the other. Some experts suggest that allergies are often genetically inherited, and the same twins are particularly likely to share the same allergies. In childhood, allergies often develop, but since many allergic reactions are deteriorated by repeated exposure, symptoms may begin to occur at any age. On the contrary, so people are able to gradually anestrate our system by exposure, which means that adults can overcome childhood allergies.
allergy testing can be a complex process,Especially if an allergic reaction can cause life -threatening conditions. Doctors often use the method of skin plot testing on a number of possible allergies. When testing the skin, a small dose of allergen is injected into a significant spots of the skin to see if the skin reacts negatively. If it is serious reactions, doctors can also use a blood sample to test potential allergies, even if it takes more time and may be less convincing than skin testing.
Allergy treatment may depend on the type and severity of the patient's allergic response. In some mild cases, such as sneezing caused by animal meat, patients avoid exposure, if possible, and an antihistamine is needed when exposed. Avoiding allergic triggering is also crucial with many food allergies, particlerly those that can cause serious reactions.
If avoiding is impossible, some doctors can recommend allergy shots. This treatment gives a patient with a small amount of allergens determinedto build tolerance in the immune system. Doses usually begin at a minute level unlikely to cause reaction, and over time increase to a typical exposure level.
allergies are becoming increasingly common around the world, but most of them are small inconvenience. Seasonal harers or pet allergies are irritating for most of the time, but harmless, yet care should be treated with any developing allergies. If the symptoms of allergies appear to worsen or include asthma or shortness of breath, some experts recommend looking for medical care at once.