(2) Snakes are afraid of natural enemies. Eagles, eagles, hedgehogs and foxes, including people.

(3) Snakes are afraid of pungent substances, especially chemicals. Such as wine, tobacco, realgar, sulfur, etc.

(4) Snakes are afraid of fire.

(5) Snakes are afraid of smoke.

Realgar is a stomach medicine, and snakes are very sensitive to it. However, the realgar added with alcohol is farther away and has better snake repellent effect, because alcohol can be used as a "diluent" to enhance the volatilization of realgar.

So! In mountainous areas, realgar is usually soaked in wine, and it is also photographed in the legend of the new White Snake.

However, it is not completely harmful. On the other hand, I can also say that "three poisons eat poison separately". Realgar and cinnabar are often used together to treat diseases, saving many lives.

In fact, snakes are afraid of sulfur. You can't find snakes in places with high sulfur content.