Urgent. There are lice at home. Is dichlorvos better or permethrin better?

Permethrin, of course. Dichlorvos is a pure chemical pesticide, which is very toxic to people. The old version has been banned. Now the newly upgraded version is still dichlorvos, which can't be stored after drinking, but it has the advantage of being cheap.

Pyrethroid insecticides are harmless extracts of compositae plants. It's called pyrethroid, which is basically harmless to people. Later, according to pyrethroids, many kinds of pesticides were studied, such as XX pyrethroids. Chloropolyester is relatively harmless inside and has good fumigation and stomach toxicity. Under normal circumstances, drinking dozens of grams will not cause any problems (refer to the toxicity of chloropolyester in Baidu Encyclopedia), and it will not cause cancer and will not remain. The disadvantage is that it is expensive.