A common drift master in rural areas, turns out it is also a traditional Chinese medicine

As a child in rural areas, there weren't many places to play in summer. When the weather was too hot, I liked to find a place with water to play around. On the water surface, I could often see a kind of bug drifting on the water, but it was very hard to catch. As soon as you got a little close, it would glide far away. Calling it a "drift" master is really no exaggeration.

In my hometown, this kind of bug is called "yan sui". Compared with other bugs, this one is not disgusting at all, but rather quite liked. As a child, I especially wanted to catch one with my own hands, but this thing really moves too fast, and it is really not easy to catch.

I heard old people say that this kind of bug is also a beneficial insect. It can eat the eggs of other pests in the water. For example, mosquitoes like to lay eggs in water, and "yan sui" can eat part of them. In addition, "yan sui" also likes to eat some floating matter on the water surface, thereby purifying the water quality.

Besides being a beneficial insect, "yan sui" itself can also be used as a traditional Chinese medicine, and can be used to treat all kinds of hemorrhoids.

Have you ever seen this little bug? What do you call it in your hometown?

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