Ear piercings not healed after 13 weeks!Watch
Firstly, you're a dumbass for going to Claire's for a piercing. Sorry, I had to get that out, couldn't hold onto it any longer.
Moving on... 6 weeks is only a very very rough estimate. It doesn't guarantee anything, and at 6 weeks I'd be extremely shocked if your piercing had fully healed in that time. 6 weeks is a ridiculous estimate given by people who work at Claire's accessories, who don't know any better.
Piercing guns are ******** and should not be used for any piercing at all. There is risk of transmitting infections like HIV and Hepatitis from these piercing guns, so DON'T GET PIERCED WITH A GUN. The "jewellery" supplied with these guns are NOT SUITABLE for a fresh piercing, as they are too blunt, too short and a lower grade metal (gold contains a lot of nickel, which irritates a hell of a lot of people).
I advise you to find yourself a decent piercing studio - they usually come attached to Tattoo parlours, so it's not hard to find them. Ask them to change the jewellery into something more suitable, for example a titanium BCR or barbell and just to check everything's in order. In future, always always have piercings done with a sterile needle by a professional piercer - not some shop assistant in claire's-****ing-accessories.