What you can actually look into is getting a small saline pump to hydrate your nasal cavity. In a pinch you can also insufflate a tiny bit of water out of the palm of your hand when you're done for the evening.
During the day while you shower, hold 2 fingers underneath your nose close enough so that while you breathe, you're also breathing in small droplets of water.
Between these two things, my sinuses have been MUCH happier with me the past month or two.