Just after the injection is not allowed to take a shower. After the injection, there is a needle eye in the skin, so if you take a shower, it may lead to bacterial infection in the needle eye, which may manifest as local redness, pain and hard nodules, and may even cause the whole body temperature to rise and fever, and there may be local abscesses and other situations. At the same time, just after the injection, the human body may have an allergic reaction or infusion reaction, the bath can cause the whole body blood circulation to accelerate, there may be dizziness, headache, nausea, vomiting and other situations occur. It is generally recommended to take a bath after half a day or a day, which will be safer, because the eye of the injection has basically healed by this time.