ya.. happens alot on my self too..
umm i usually just bring it back to HongKong.. and then give it to the Gucci or LV in 太古廣場... they have good serves... :)
我的還沒弄髒,so.......
but my friends often bring it back to the orginal store la....they will handle it lor....
it's better than clean it urself...u might destroy it finally ne......