have had dry eye syndrome and blepharitis for the past fifteen years or so. Usually once I clean and apply drops it regulates both conditions. However over the past few days I have noticed that literally any time I go into my bedroom my eyes go insanely dry, far worse than normal. I have mold in my room half of which I have gotten rid of but there has been no change. I have also been using nitroglycerin ointment for an anal fissure and am wondering if it could be connected to that. We have also started using central heating in the house again so I'm wondering if it's that. It's incredibly distracting and not even the drops are working.