Short-acting leukocyte boosting injection is usually given for 2~3 days until the granulocyte level is restored. The main function of the injection is to catalyze the production of white blood cells, i.e., by catalyzing the immature neutrophils to mature, differentiate and proliferate rapidly, thus restoring the white blood cells to normal, which is convenient for the subsequent treatment, and at the same time, it can avoid the secondary infection due to the low white blood cells. The short-acting injection is divided into long-acting and short-acting injections. Short-acting injections have a shorter duration of action and need to be administered every day, which has a shorter duration of action. Therefore, short-acting injections need to be used for 2~3 days and need to be used continuously, with daily blood sampling to check for changes in the indexes, and if the leukocytes are still low, they need to be continued until they are normal or close to normal. Short-acting leukocyte injections are cheaper than long-acting injections and are more commonly used in clinical practice. Common adverse reactions include rash, fever, diarrhea, etc. Allergic patients are prohibited. It is recommended to use Short-acting White Up Injection under the guidance of a doctor, and if any discomfort occurs, it is recommended to seek medical advice promptly.