My dad has a constant running nose. The doctor has prescribed nasal spray 2x daily. I'm not sure if he uses it or not as he lives in an assisted living apt on his own. Dad has taken to using napkins to wipe his nose. Even worse he reuses the napkins again and again and leaves them lying about to dry out and they lay around everywhere. He actually stacks them. Yes, he has some dementia. Was over today and got rid of them all and told him how unsanitary it is to do that. He acts like he didn't realize they were used. (Lying is one of his issues). What can we do?