过敏反应实质上也是一种免疫反应。我们已经知道,病原菌或其它异物入侵机体后,人体的免疫系统就会产生一种相应的反应,把病原菌消灭掉,这就是对人体有利的免疫反应。事物总是一分为二的,有的人这种防御功能过强,对某些物质产生过强的反应,甚至可引起组织损伤,造成病变,这就成为对人体不 Anaphylaxis is essentially an immune response. We already know that after the pathogens or other foreign bodies invade the body, the body’s immune system will produce a corresponding response to eliminate pathogens, which is beneficial to the human immune response. Things are always divided in two, some people this defense too strong, have too strong a response to certain substances, and even cause tissue damage, resulting in lesions, which became the human body is not