Consider yourself lucky i've got this in both ears & have had it for about 2 years!!
I have tried all sorts of creams etc etc etc but in the end I have found that the "best" or at least most likely to stop it for a time to be advised by my ears when they start up again - is to use a bobby pin(hair pin) the u turn end & just gently use it as if i'm getting something out (not hard & not really inside - just at the entrance of my ear where the sensation is.
If you find something more permanent & that I don't have to make sure I always have a bobby pin with me constantly let me know please!!