制www.lindalemus.com/yishi/针须用马嚼www.lindalemus.com/jianyan/环铁．以马属午午属火火克金取克制．能解铁毒之义也．故本草用马衔铁作医针为妙．若以真金制针．用之更佳．其 炼之法． 以马衔铁琢作二寸长．或三寸．不拘长短．要光圆尖者数针．三棱式者数针．以便分症从穴按用．不可过于尖锋恐易折针于肉内也．次以蟾酥涂针尖上入火中微 ．不可令红．取起复照前涂酥三次．乘热插入腊肉皮之里肉之外．将后药用水三碗煎沸次．入针肉在内．煮至水干．倾于清水中．待冷将针取出．于黄土中插百余下．以去火毒再用．细石打磨净及端直．仍用松子油涂之．当常近人气为妙．
