Children without any symptoms of white blood cell increase may be physiological, such as exercise, hunger and other conditions, at this time no special treatment. It may also be pathological, such as infection, allergy, leukemia and other conditions, anti-infection, anti-allergy, chemotherapy and so on. I. Physiological increase: such as strenuous exercise, hunger can have a slight increase in white blood cells, if there is no other manifestations. If there is no other manifestation, there is no need for treatment, and it can recover by itself after a period of time. II. Pathological increase: in the early stage of the disease, the body may not show symptoms, but there are changes in the blood picture, can follow the doctor’s instructions for treatment. 1. If it is an inflammatory reaction, antibiotics such as penicillin, azithromycin, cephalosporins can be used; 2. If it is a viral infection, antiviral treatment such as ribavirin, oseltamivir, etc. can be administered; 3. If it is caused by allergy, allergens can be found and avoided as much as possible, or oral treatment with drugs such as cetirizine and loratadine can be given; 4. if it is leukemia, you can use vincristine, Zoerythromycin, Mentholase and other drugs for combination chemotherapy. There are many other reasons for high white blood cells in children without any symptoms, and it is recommended to consult a doctor in time to have a specialist judge the assessment, improve the relevant examination, and carry out targeted treatment or therapy. All of the above drugs should be used under the guidance of a doctor, avoid self-medication.