Skunk off flavour is due to ultraviolet light causing chemical reaction that transforms alph-acids. Once the skunk off flavour is created, does it go away with time (hom much time?) or it just stays there (almost) forever?

Skunky off-flavours are caused by ultraviolet light causing chemical reaction that transforms alpha-acids. Once this flavour is created, does it go away with time, and if so how much time? Or will it stay forever once it is present?