谁都知道痒是什么滋味。大概没有什么人会说:我从来没有痒过。可是,痒到底是怎么回事,很难说得一清二楚。现在笔者从医学角度来谈,或许对读者有所帮助。痒,医学上称瘙痒。和痛、麻、冷、热、触等感觉一样,痒是皮肤和粘膜向皮肤移行部位(如鼻 Everyone knows itchy taste. Probably no one would say: I never had itch. However, itchy in the end is how the matter is difficult to put it plainly. Now I talk about the medical point of view, may be helpful to the reader. Itchy, itchy medicine. And pain, hemp, cold, heat, touch and feel the same, itchy skin and mucous membranes to the skin migration sites (such as the nose