Hybrid FF mask and raw nose .

I am usiing the Mirage Liberty FF mask and have been for a couple years now. Problem Now is that I have developed a raw sore spot right on the tip on my Nose. In two years of using this Mask this is the first time I have gotten a Raw sore spot on my nose. I am not sure of the cause but I really need to find the Cure. I have been putting Bacitracin antibotic ointment on it but each night that I mask up defeats the healing process. Guess I might need to change out the Pillows and Mouth cushion even though I still get a good seal with the old pillows and mouth cushion. I have been using the pillows and mouth cushion for about six months now and guess it is time to change them and see if the nose will finally heal. Any Hints or suggestions will be greatly appreciated. Thank you.