There are many ancient proverbs in China, such as "Don’t sprinkle salt on someone’s wound". I believe everyone should hear this sentence frequently. The idea is that if someone is already very miserable and pitiful, let’s not say anything unpleasant to hurt them. So, the question is, how much does it hurt to sprinkle salt on the wound? Why is it considered such a cruel thing by people.

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The wounds we usually refer to as simple skin damage that leads to nerve exposure. Salt is an alkaline substance that can kill bacteria, but when alkaline substances come into contact with exposed nerves, they can cause pain. This is also the main reason why sprinkling salt on the wound can be more painful.

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In addition, another reason is that there is a tendency for water to permeate from low concentration areas to high concentration areas, while salt is almost devoid of water. The water in the wound is quickly absorbed by salt when it comes into contact with it; Aspiration; Walking, a large number of cells that have lost water die, so they will feel pain.

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Perhaps some people may ask, why don’t we feel so much pain when we use physiological saline in our daily lives? That’s because the concentration of physiological saline and human salt is the same, and they are in equilibrium with each other. Even if sprinkled on the wound, there will be no permeation, so there won’t be any pain.

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For idioms and ancient proverbs, these are the crystallization of the wisdom of our ancient ancestors. Even though medicine was not as advanced as modern times at that time, our ancestors proved through practical experience that their wisdom and medicine were very high, and many medical treatment methods are still a mystery to this day.

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