I really don't believe any of us here are MS experts. Highly qualified and informed patients? Definitely!

The use of steroids is a temporary stop gap measure without and real long term benefit except for repeating the process. You may have a severe localized case of neuralgia (nerve pain) which may be better treated with specific meds including topicals. I have to share this because it's part of my "sick" sense of humor. My first thought when reading your post was, you are so lucky this neuralgia is not on your butt. But again, that's just me.

As with many symptoms of MS, this one may be chronic or come and go. No one really knows the process within each individual. The key is to deal with the symptoms the best you can when they present and keep on going with your life.