I got my cartilage pierces 8 days ago and when I first got it pierced it was a little red but it didn't swell or anything and only hurt when cleaning it. Today though it started to swell and it all red and hurts. There isn't any puss or blood and I have been cleaning it 2 times a day with the solution provided by the piercing shop. Is it normal to be swelling after a week? Could it still be infected even though there is no blood or puss?