Is my snake bite infected?

I have this snakebite pierced for a week now, in the few couple days my mouth swelled then got back to normal, but now i noticed it got red and a bit hard I think its because im chewing too fast and sometimes bit the piercing so it got irritated (lol fast eater) also i sometimes apply lip balm but avoid the pierced area. I clean with saline 2-3 times a day