Horn changes spine skin tumour to often produce yu yangguang to expose place according to what shoot , below the circumstance of extremelying he xianzhao , 2 3 weeks inside appear quickly smooth red is nodal , there is corneous embolus in the center of its , nodal brim sees outspread blood capillary 角化棘皮瘤常发生于阳光照射的暴露部位，在无任何先兆的情况下， 2 3周内迅速出现光滑的红色结节，其中心有角质栓子，结节边缘可见扩张的毛细血管。
3.
Medicaments is absorbed through the skin , outside changing property to affect except the put in order that gets medicaments itself , still with skin itself appear a gender to have affinity , the corneous layer in the skin is the main obstacle that the influence appears a skin to absorb 药物经皮肤吸收进入体内的主要途径有： （ 1 ）通过毛细血管通道；经过角质层转运和皮肤深层转运而吸收入血，阻随血液循环到达人体各部位； （ 2 ）水合作用：角质层经水合作用后，可膨化呈多孔状态，有利于药物渗透； （ 3 ）热刺激作用：可使局部血管扩张，血液循环加快，有利于药物的穿透弥散和吸收。
