Punch biopsies are anywhere between 3-5 mm in diameter. So from the size of a BB to just a little larger. Most of the time they do not even put a suture in the 3mm punch holes and they heal in by what is called "secondary intent" by the body just fine without need for closure. Most of the 5mm ones do the same, but I have seen surgeons put one suture in for the heck of it. They heal from the bottom up, so do not be alarmed if the hole is still there for a few days. It should not bleed as the clot forms almost immediately and stays put if you don't mess it it all the time. (Most do mess with it, and there is some small blood on your tooth brush etc. for a few days if you do. For sure a fungus can persist for weeks even months, so our hard rule of checking anything that does't heal in two weeks is not an indicator for sure of cancer, but that the thing needs a definitive diagnosis. If it is some kind of viral, bacterial, or fungal infection great, now they know what it is and appropriate treatments can be initiated to deal with it. Scalpel and punch biopsies are equal, and up to the surgeon. A scalpel biopsy will probably take two stitches to close up. It isn't much more radical but the shape of the wound is more prone to slower healing without suturing. Whatever you have done, just gently keep it clean and infection should not be a concern.