过敏镜头

概述

Allergies are inappropriate or exaggerated reactions of the immune system to substances that, in the majority of people, cause no symptoms. Symptoms of the allergic diseases may be caused by exposure of the skin to a chemical, of the respiratory system to particles of dust or pollen (or other substances), or of the stomach and intestines to a particular food." rel="tooltip">过敏镜头是最常用和最有效的过敏形式Immunotherapy ("allergy shots") is a form of preventive and anti-inflammatory treatment of allergy to substances such as pollens, house dust mites, fungi, and stinging insect venom. Immunotherapy involves giving gradually increasing doses of the substance, or allergen, to which the person is allergic. The incremental increases of the allergen cause the immune system to become less sensitive to the substance, perhaps by causing production of a particular "blocking" antibody, which reduces the symptoms of allergy when the substance is encountered in the future." rel="tooltip">免疫疗法。它们被指示用于治疗影响鼻子和眼睛（过敏rhino-unigivitis），耳朵（过敏性中耳炎），肺（支气管的过敏条件Asthma is a chronic, inflammatory lung disease characterized by recurrent breathing problems. People with asthma have acute episodes where the air passages in their lungs get narrower, and breathing becomes more difficult. Sometimes episodes of asthma are triggered by allergens, although infection, exercise, cold air and other factors are also important triggers." rel="tooltip">哮喘）以及严重的昆虫刺激过敏。镜头有效地治疗对许多过敏原的反应，包括树木，草，杂草，模子那房子尘埃那动物皮屑， 和虫子。

将少量过敏原的提取物注入臂的皮肤中。注射可以每周一次（有时更常见）约七个月，之后可以每两周给药一次。最终，可以每四周注射一次。治疗的持续时间可能是三到五年，有时会更长。