Is there any harm if the heater is on the whole day?

Question
This is my first time in the USA during winters. The heater is switched on the entire day at home. I also make it a point to switch on the humidifier. However, it is a bit difficult for me to breathe. Do let me know is it a matter of concern and what should I do?
Expert Answer
S
The use of humidifier should help. If despite that there is dryness in nose, you can instill saline nasal drops a couple of times and adequately hydrate yourself by taking sips of water at intervals.