Low white blood cell and neutrophil counts require separate treatment depending on the cause. Common causes of low white blood cell and neutrophil counts include viral infections, physical and chemical stimuli, and certain immune system diseases. 1. Viral infections: the most common reason for the decrease of both is the occurrence of infections, such as influenza, viral hepatitis, etc. Different diseases are treated differently, for example, patients with influenza need to be given antiviral drugs as early as possible, such as oseltamivir; viral hepatitis has no specific drugs, and can be given to assist in the symptomatic treatment of drugs, such as interferon, adenosine, biphenyl dibenzoate and other treatments. 2. Physical and chemical factors stimulation: such as long-term contact with the ray population, as well as some of the use of antitumor drugs, long-term use of antibiotics, anti-hyperthyroidism drugs, etc., can be caused by leukocytes and neutrophils decrease. The white blood cells and neutrophils can be reduced, which can be treated with white blood-boosting drugs such as Lipiodol, granulocyte colony-stimulating factor and so on. 3. Certain autoimmune diseases, such as systemic lupus erythematosus, can also cause problems similar to low white blood cells. When the immune system disease is under control, low white blood cells and neutrophils can be corrected. Treatments and medications include: non-steroidal anti-inflammatory drugs (e.g., ibuprofen), chloroquine, glucocorticoids, immunosuppressants (e.g., cyclophosphamide, azathioprine), immunoglobulin therapy, and plasma exchange. Therefore, if there is a decrease in white blood cells and neutrophils, you should go to a regular hospital and have a professional doctor combine the medical history and other manifestations to determine the cause and give targeted treatment or therapy. Blind self-medication should be avoided.