Sometimes they can resolve or improve on their own and don't always need surgery, but definitely need to rest! As long as the person continues activity that puts "strain" on that area, it will not heal.
Some conservative things are physical therapy excercises, sometimes traction, intermittant, (there are many places who specialize in this, but need to check them out thoroughly). Sometimes chiropractic care works, (not the 'pop and crack' kind, that can make it worse), but there are techniques for reducing inflammation and muscle tension and decrease nerve compression..
I have personal experience with this and know many other people who have avoided surgery, and if you want to have more information, send private message.