Hello Jeane-- I think it definitely could be due to chronic dehydration, but also some people are just dryer than others. Of course, menopause doesn't help matters, either! The sprays help a little, but honestly, I just put vaseline up my nostrils before bedtime or during airline flights to prevent the dryness that can happen in those environments. Bedtime is hard because of forced air heat and the fact that we are breathing through or noses (most of us, anyway!). Airplanes are a complete disaster for dry eyes and nose sufferers. You could try coconut oil up the nostrils, too. That might work nicely.  Definitely drink a lot of water. I often just drink of cup of hot water if I don't feel like having tea or cold water. Drink up!

A saline gel (like the Ayr brand) is specifically designed for dry, crusty noses.

Thank you.  I will try the suggestions !