My flat warts have recurred, and I am considering a re-treatment. Which procedure would be best?

I had a procedure to remove flat warts once, but as time passed, I noticed them coming back, so I am considering getting a re-procedure.

It was fine when I first had it removed, but it seems like it hasn't completely disappeared and is gradually appearing in new areas as well.

I am wondering which laser treatment would be best to get for the removal again this time. I am also concerned about whether it is okay to receive repeated treatments on the same area, and whether there is a risk of scarring or hyperpigmentation.

Has anyone received a re-treatment for flat warts? Please share your experience regarding the effectiveness of the second procedure and whether the results were maintained without recurrence!