After a week of antibiotics, the white blood cells decreased and then increased again, firstly, consider the problem of incomplete treatment of inflammatory infections. In the clinical application of antibiotics, the number of white blood cells decreased, firstly, it is considered to be related to the bacterial infection, so after the control of bacterial infection, the number of white blood cells decreased, but increased again, it is considered to be related to the insufficient dose of antibiotics or the short time of application. In this case, it is recommended to do drug sensitivity test, according to the drug sensitivity test to choose reasonable antibiotics for treatment, when the inflammatory infection is more serious, you can consider the combined application of antibiotics for treatment, at the same time, pay attention to the full amount of medication for a full course of treatment. If the inflammation and infection are more serious, and abscess or sepsis has been formed, further treatment is needed, so it is also necessary to exclude whether the above factors, and it is recommended that the patient consult the relevant departments of the hospital.