If you’re prone to dandruff, you know it’s worse in the winter, thanks to the lower humidity. Aside from using an anti-dandruff shampoo, there are other things you can do to reduce or eliminate dandruff. Try using a humidifier at night and shampooing with warm, not hot water. Hot water dries out your scalp as well as your skin. It’s also a good idea to avoid hair products that contain alcohol.