About three weeks ago I went to my local doctor and had some warts frozen with liquid nitrogen. Most are now gone, aside from one giant blister that was originally black and clearly filled with blood, but now has deflated and is just hard. The thing is, it deflated about a week ago, and from that point has basically looked the same, and is showing no sign of coming off. Is it going to suddenly come off in a week? Or should I try to pull it off? I m just sick of wearing a band aid to cover it up during the day (it looks really ugly). Thanks!