@njbsquared maybe the sooner the better! I'd had the one out for almost a year before it had grown back together enough to try. So I'm sure the scar tissue underneath was substantial.
Just be prepared that it hurts worse the second time around, due to the scar tissue. I had mine done, ripped one (long story... Alcohol involved haha), waited for it to close back up and then redid it. Holy Ouch. I have a high pain tolerance, but that... That was intense!