Excuse the poop, but these are more what advanced frost bite looks like. Also included a toe example since I commented on a frost bite post with an offer to show it and can't remember which one it was.
Note* these are really advanced, a day or two is not likely to cause this damage and even these are likely to heal a bit still if the weather doesn't get worse again
Note* these are really advanced, a day or two is not likely to cause this damage and even these are likely to heal a bit still if the weather doesn't get worse again