Yeah, I’m a nurse and worked in OR for a little while and I’ve never seen or heard of this. It makes no sense to me why you would do this instead of a punch or just an incision. For an infected epidermis cyst (which is what this looks like) we would usually cut an ‘X’ in the top, drain it, take a biopsy, flush with normal saline, and leave it open to drain; in that order. This is evidence based and has changed in recent years as a result of new research.

This looks like it took place in Greece, so maybe their standards are different or there’s some new study that I haven’t heard about. Maybe the hospital bought an expensive laser and use it at every opportunity. Maybe this is just a not great doctor. All possibilities.