Would salt work?
I was told if they're attached just leave them, they'll do less harm if they come off naturally and even a big one will only take about a teaspoon of blood. Ice, burning, salt etc. will only make them come off without sealing the wound.
..they will spew if upset , and that's when theres more chance of infection.
If Woden Wills It , then it will be so
Not only that, but if you set about them, the shock might make them vomit someone else's blood from their last meal, into your body. Not a nice thought. Just leave 'em.