Place the dryer container in the room. This includes commercial products designed to draw moisture from the air with calcium chloride, a salt crystal. You can get it from hardware and home improvement stores. Check containers once or twice a week to determine how often they should tend. Pour the collected water in a regular container. Add more desiccants. In addition to the required containers. Add more containers of desiccants. In addition, if you have to empty them more often than comfortable. Aside from that, the humidity problem may arise from your crawl space, so you might need to hire a crawl space repair company to check it out for you.
Aside from that, you may also try to reduce the amount of water in the air of your house. Run a wood stove or space heater if it is safe and feasible to do so. Heating the air reduces humidity as long as you use a dry heat source, not gas heat. Turn off the heat or go down before the room temperature reaches 95 degrees Fahrenheit; Higher temperatures in humid rooms can cause steam damage to walls. Run the fan while heating the room for a large dehumidifying.