Measure the humidity in the air where you live, especially where you sleep (and therefore probably spend most of your time). If it's below 30% in the winter, ge

Measure the humidity in the air where you live, especially where you sleep (and therefore probably spend most of your time). If it's below 30% in the winter, get a humidifier good enough to actually raise it. If you can't get a humidifier good enough to humidify your entire living spaces, try just your bedroom.