Treat the underlying cause with a healthcare professional
Stay well hydrated
Get adequate sleep
Manage stress with relaxation techniques
Exercise moderately and regularly
Eat a balanced diet rich in fruits and vegetables
Reduce intake of processed foods
Avoid smoking and secondhand smoke
Limit alcohol consumption
Maintain a healthy weight
Follow prescribed medications as directed
Avoid unnecessary use of steroids or other medications that can raise WBC count
Practice good hygiene to reduce infections
Monitor WBC levels with regular blood tests