Medical hydrogen peroxide has a sterilizing and disinfecting effect, and is widely used in daily life. It can be used for the cleaning and disinfection of wounds, especially traumatic wounds, and can also play an anti-inflammatory and sterilizing role when used externally, without producing toxins and with relatively little effect on the human body. However, hydrogen peroxide has strong oxidizing properties and should not be taken orally, nor should hydrogen peroxide be used for unclosed wounds. Because hydrogen peroxide will produce a large amount of oxygen after dilution, it may lead to air embolism. After oral administration, it can produce poisoning, and patients may feel abdominal pain, chest pain, nausea, vomiting, and even difficulty in breathing, and in severe cases, shock may occur. If you have hydrogen peroxide at home, be sure to keep it out of the reach of children, while avoiding direct sunlight and storing it in a cool place.