I left my plastic mac hanging around while we ate a curry, and now it stinks of it. The washing instructions say not to wash it so I've given it a rub with a soapy cloth and left it out to air and it still stinks of curry. Any tips on handling the problem? It's a really cheapie one, thick plastic, the kind that gets condensation in the sleeves while you're wearing it. I'd rather not buy a new one though, I quite like it.