Sadly the stick doesn’t screw in or out. It’s a faulty product.
My husband uses the vapor stick every night before going to bed. Helps him to breathe easier through the night.
Hard to apply.
The experience that I had was subpar. The stick is very hard. Maybe it has to be so that it won’t melt if it gets hot. But mine all both melted away when I took them on a trip. Don’t leave in a hot car.