Noise cancelling headphones? Should I buy them or not?

I've been thinking of buying some noise cancellation headphones and using White noise on it, which I have never done because my doctor told me that headphones and/or white noise is a recipe for disaster for Tinnitus.
But the noise is getting a bit annoying these days, so whats your advice on this? Should I buy some noise cancelling headphones and blast white noise on it or not?