My husband's doctor just told him to use a saline spray. Oxygen dries up the nasal membrane. He also uses a Perfecto 2 with a humidifier attachment for moisture and oxygen mix.

A little bite of coconut oil . Take your finger put just a dab on finger and put on inside of each nostral every other day

My doctor gave me a nasal spray, which surprised me as I wasn't having any difficulty with my nose, it seemed pretty clear to me, but he smiled and said, "that's what you think, it's amazing how much rubbish is in there bunging up your sinuses" so I used it and it's amazing how much I cleared, therefore helping the breathing too.

Yes nasal sprays can be very helpful

I was getting stuffed up when i first went on 02.once they put a humidifier on it I was fine.