does the end unscrew ,My SM58s do and you can wash the foam linig in hot soapy water but not the actual mic capsule some that dont unscrew (like sm57's for instance) have a little circlip thingy which is a bit more difficult but it still can come off .if worst comes to worst and it still stinks you should be able to buy new 'baskets' (just the wire and the foam) cause I had to replace 2 of my AKG 770 instrument mic baskets and they weren't too expensive. Good luck