Head-dropping surgery includes two categories: "medicine falling" and "flying falling".

Indigenous women in Nanyang often bow their heads to those who cheat their feelings. Before leaving, the other party promised not to change his mind, or he would come back to get married after a while. A few days before leaving, indigenous girls will leave some medicine in the food and mix it up for each other to eat. If the other party reneges afterwards, the drug will make her whole body rot and die. Of course, the other party will come back to get married as agreed, and the indigenous girl will give the antidote to the other party. Some people also use these drugs to control a person and let him be at the mercy of others. This spell is called "medicine drop". This medicine drop is similar to the "magic method" popular in Miao areas of China. The five most poisonous insects, poisonous snakes, poisonous spiders, centipedes, toads and poisonous scorpions, are all put into the jar.

Let them kill each other and finally die. After rotting and drying, take out the residue in the jar and grind it into powder. It is a trick to put a trick on an ungrateful lover and let him get what he deserves. This is the first step for the mage to learn the technique of falling head. Of course, the medicine for lowering the head of each sect is different, and it can only be solved by the antidote of that sect.