@talentryto- Based on your symptoms, it sounds like a steroidal prescription nasal spray will help you. Since this type of medication reduces swelling, using one will help prevent your nasal passages from swelling when you are exposed to dry heat.
You should talk to your doctor about the available options so you can find a nasal spray that will work for you. Always keep in mind that you should follow his or her instructions, and never use this type of medication longer than you are advised to do. If you do, you could become addicted to it because nasal sprays are only meant to be used short term.