After cutting the pepper, my hands hurt like fire, burning. At this time, some people will wash with cold water, but this can only relieve the pain slightly, but it can't completely solve the problem. In fact, rubbing alcohol, vinegar and washing hands with hot water can remove the spicy taste. \ x0d \ x0d \ The irritant in pepper is capsaicin. When cutting peppers, capsaicin will stick to the skin, which will dilate capillaries, lead to redness and fever of the skin, and accelerate the local metabolism. At the same time, it will stimulate the pain nerve, which is why we usually have a hot feeling. It is generally believed that this is caused by the chemical transformation of capsaicin to skin nerve endings. \ x0d \ x0d \ capsaicin is soluble in ethanol and alkaline aqueous solution, but insoluble in cold water. In industry, edible alcohol is used as the extractant to extract capsaicin from pepper. Therefore, according to this principle, we can take the method of smearing alcohol to dissolve capsaicin in our hands. After cutting the pepper, you can wipe your hands in one direction with an alcohol cotton ball, then wash your hands with clear water, dry them again and rub them three times until the symptoms are relieved. \ x0d \ x0d \ In addition, you can wash your hands with a small amount of vinegar, because vinegar is acidic and can neutralize capsaicin. If there is no medical alcohol or vinegar, just wash your hands with hot water, because capsaicin will produce irritating evaporation at high temperature. Although not as good as alcohol and vinegar, the effect is better than cold water. \ x0d \ x0d \ In fact, when cutting peppers, you can press them with your fingers instead of pinching them with your nails, so that your hands will not burn easily.