question: I have 2 large bumps under my armpit that hurt very badly and a few random (about 7) small red bumps that have whiteheads on them under my armpit and one on my stomach. What is this? I recently got over bronchitis and I only have 2 days left of amoxicillion left. I started taking this because i was coughing up dark green mucus after bronchitis. I figured taking an antibiotic would keep me from getting an infection (whats in my armpit) or random bumps on my body. Please help me