I have taken both of these, and I still take the Fluticasone Propionate because I have allergies. It is the best allergy medicine that I have ever taken and I love it. I have no side effects from it.
I also took prednisone for a month after my sudden hearing loss and tinnitus began. I started taking it within 48 hours of my hearing loss and tinnitus. I really did not like the prednisone, I did a taper which started off with 60mg, and they gave me valium as well to help me sleep. It made me feel wired up, and I did lose 7 lbs (which is generally awesome, and I was working out) but it was unpleasant. It was worth it to me because my hearing almost returned to normal levels. I do still have what I guess is mild but annoying tinnitus. I did have a hard time when I stopped taking the prednisone. I felt very weak and spaced out while my body started making its own cortisol again. I also feel like it messed with my hormones, and that was brutal for a couple of months, but is better now. I still would choose to take it if given the choice because it may have been what saved most of my hearing.
They usually advise taking prednisone within 30 days of the onset of hearing loss, but it probably won't hurt to try. I did not enjoy the side effects of prednisone but they weren't permanent. How long do they want you to take it for?
I really hope that these drugs make a difference for you.
Lara