i have my lip pierced on the right side, 14ga. currently there is a stud in it, and i have had it for about 2 months. i put a 1/2" hoop in and it caused it to swell up and get all pussed up. figured 2 months was more than enough time to heal...put the stud back in, within a day swelling went away, so did the puss. I really want a hoop in, i like the look better. am i doing something wrong? why is it swelling and getting infected? should i get a smaller hoop? smaller gauge?