过敏性体质的人，尤其是很多呼吸系统过敏的人，在中医的观点上，主要是肺、脾、肾三脏腑功能失调而造成的。肺主呼吸，肺不耐寒热，易受外感风寒病邪侵袭而造成皮肤的不适。脾主运化，营养失调亦损伤脾胃，进而因运化代谢的不良，造成水湿水邪聚合而成痰湿病气，引起对食物的过敏。肾主纳气，调节水分代谢。若肾阳不足，气纳功能不良，水分蒸化亦失调，进而造成皮肤的干燥、大便的干硬秘结。
中医治疗过敏的几个特点：
一补：调和五脏六腑及体液，补益气血、调和阴阳，加速血液循环代谢，修复营养受损老化的黏膜组织，使五脏六腑恢复年轻态，体液恢复平衡。对于气虚弱型过敏的人群，临床表现主要为阵发性鼻痒，喷嚏，流清涕，鼻塞，鼻酸胀较重，四肢乏力，头昏头重，饮食不香，大便偏稀，鼻黏膜肿胀明显，苍白或灰暗，舌质淡胖边有齿印，苔白或腻，脉细或弱，治疗用益气健脾法；对于肾阳亏虚型过敏人群，临床表现主要为阵发性鼻痒，喷嚏频作，连连不已，鼻流清涕，量多如注，形寒怕冷，腰酸腿软，小便清长，夜尿频，舌淡胖，苔白，脉沉细，治疗用温阳补肾法，都有实际疗效。
二排：把多年积蓄在五脏六腑及体液内的寒、湿、毒代谢出体外，对于气虚寒型的患者，临床表现主要为阵发性鼻痒，喷嚏，流清涕，早晚易发，遇风（寒）即作，怕冷，易感冒，面色淡白，气短，咳嗽痰稀，鼻黏膜苍白水肿，舌质淡，苔白，脉细，治疗用温肺散寒法。
三提：提高人体免疫功能，改善过敏体质，提高人体对各种过敏原的抵抗防御能力，斩断过敏原入侵。对于气虚血瘀型：临床表现主要为阵发性鼻痒，喷嚏，流清涕，鼻塞明显、鼻甲紫暗，舌暗红有瘀点，苔白，脉涩，治疗用活血化瘀法。对于外寒内热型：临床表现主要为阵发性鼻痒，喷嚏，流清涕，鼻塞，怕冷，遇风易作，口干，喜冷饮，大便干结，舌红苔黄。治疗用平调寒热法，都有实际疗效。
An allergy is a hypersensitivity disorder of the immune system.[1] Symptoms include red eyes, itchiness, and runny nose, eczema, hives, or anasthma attack. Allergies can play a major role in conditions such as asthma. In some people, severe allergies to environmental or dietary allergens or tomedication may result in life-threatening reactions called anaphylaxis. Food allergies, and reactions to the venom of stinging insects such as wasps andbees are more often associated with these severe reactions.[2] Not all reactions or intolerances are forms of allergy.[3]
Allergic reactions occur when a person's immune system reacts to normally harmless substances in the environment. A substance that causes a reaction is called an allergen. These reactions are acquired, predictable, and rapid. Allergy is one of four forms of hypersensitivity and is formally called type I (orimmediate) hypersensitivity. Allergic reactions are distinctive because of excessive activation of certain white blood cells called mast cells and basophils by a type of antibody called Immunoglobulin E (IgE). This reaction results in an inflammatory response which can range from uncomfortable to dangerous.
A variety of tests exist to diagnose allergic conditions. If done they should be ordered and interpreted in light of a person's history of exposure as many positive test results do not mean a clinically significant allergy.[4] Tests include placing possible allergens on the skin and looking for a reaction such as swelling and blood tests to look for an allergen-specific IgE.
Treatments for allergies include avoiding known allergens, steroids that modify the immune system in general, and medications such as antihistamines and decongestants which reduce symptoms. Many of these medications are taken by mouth, although epinephrine, which is used to treat anaphylactic reactions, is injected. Immunotherapy uses injected allergens to desensitize the body's response. Mild allergies like hay fever are very common.
From Wikipedia, the free encyclopedia
The immune system is a system of biological structures and processes within an organism that protects against disease. To function properly, an immune system must detect a wide variety of agents, known as pathogens, from viruses to parasitic worms, and distinguish them from the organism's own healthytissue. In many species, the immune system can be classified into subsystems, such as the innate immune system versus the adaptive immune system, orhumoral immunity versus cell-mediated immunity.
Pathogens can rapidly evolve and adapt, and thereby avoid detection and neutralization by the immune system; however, multiple defense mechanisms have also evolved to recognize and neutralize pathogens. Even simple unicellular organisms such as bacteriapossess a rudimentary immune system, in the form ofenzymes that protect against bacteriophage infections. Other basic immune mechanisms evolved in ancient eukaryotes and remain in their modern descendants, such as plants and insects. These mechanisms include phagocytosis, antimicrobial peptides called defensins, and the complement system. Jawed vertebrates, including humans, have even more sophisticated defense mechanisms,[1] including the ability to adapt over time to recognize specific pathogens more efficiently. Adaptive (or acquired) immunity creates immunological memory after an initial response to a specific pathogen, leading to an enhanced response to subsequent encounters with that same pathogen. This process of acquired immunity is the basis of vaccination.
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