Hi, Over the past two weeks I have had random (6 total now) bumps appear on various places on my body. Two on my arm, two on my shoulder, one on my face, and now one on my leg. They start as just a bump, about the size of a small pea, then gradually become itchy. After about a day of itchiness, it fills with puss. The puss fills around the outer perimiter of the "wound" as if making a ring. I've drained the puss and cleansed them thoroughly, put antibiotic on them, but they fill up with puss for a few days, then eventually scab over and heal. The ones on my arms and shoulder healed in about a week, the one on my face is still there and the one on my leg just appeared yesterday. Should I be concerned?