Breathing in dry air all day makes my nose dry and gives me a headache. how can i change this?

Saline nose spray: Saline (a mild, non-stinging salt water) sprayed in the nose periodically (once an hour or so) can help maintain moisture to the nose. Also, applying a small amount of vasoline petroleum jelly around the nose after using the saline can help keep the saline in place, providing even greater relief.

Dry: Hydrate and buy a good quality room size appropriate humidifier