See a doctor to find and treat the underlying cause of the high white blood cell count
Treat any infection as prescribed
Review all medications with a healthcare professional
Stop smoking
Reduce stress
Get adequate sleep
Stay well hydrated
Avoid strenuous exercise if it is temporarily raising the count
Manage chronic inflammation or autoimmune conditions with medical care
Follow treatment for allergies or asthma if they are contributing
Maintain a healthy weight
Limit alcohol use
Seek urgent medical care if you have fever, chest pain, shortness of breath, severe weakness, or other concerning symptoms