I agree that you should use a humidifier, but using a pot of boiling water or a hot plate is extremely dangerous. What would happen if the water ran dry? The stove or hot plate would melt the pot, and start a fire. Or, you might knock over the pot when you get up in the night, and cause a serious or fatal burn. It is much better to use a humidifier in your bedroom, and continue the use of the skin moisturizer; you will be surprised how quickly your skiin will improve. You will sleep much better as well, as your nasal passages and throat will become less dry.
In summary, humidifier plus skin moisturizer.