Can you just get it re-done with a gun at a hairdressers or somewhere?

Some time since Saturday (I had earrings in then) my left ear has healed together. It was a bit sore and had a fair bit of dry skin in/around it which I stupidly picked at. What I think has happened is I've kind of opened it up on the inside and it's healed together overnight. There's absolutely no hole there, no matter how you pull it there's no hole for anything to go through

I definitely want it re-done, is just having the gun again alright?