For the life of me , i don't know why this is in CB, as it is obviously a medical question.
AB seems to be disintegrating and serious answers tend to bypass the section of CB.
Pyxis at 04.44 is quite correct.
He will need a skin graft as he most certainly has what is known as a Basal Cell Carcinoma (Rodent ulcer) and either due to a wide excision or the site of the lesion, the skin sutures would be under tension and hence the wound would fail to heal, in which case a skin graft is most appropriate.
I plead with AB again..... try and use the correct sections if the answers are to be meaningful and if expert advice from informed posters are to be maintained.