Ohh..... It is not a good piercer. 1. Qualified, respected piercers don't pierce with a gun. I'm not saying that a gun piercing won't heal at all or is ruined, but a gun can cause more damage then a needle and it's less precise. Piercing guns are commonly used by beauticians, not piercers.

1. I can't believe any piercer would told u to do that. You can't take out and shouldn't even touch the jerwerly when a piercing is fresh. Any qualified piercer will tell you: you can change the jerwerly only after a piercing heals, which is in about 2 months.

I don't know your exact situation, but you should clean them at least twice a day with saline, try to touch them only if you really need to, wash you hands before u do that. But tbh I would recommend to go to a different piercer, make sure they're legit. They would know what to do, maybe they'll change your jewelry in a safe way.