I had a B.B. type bump under the skin on back of my forearm. it was painful to touch, but thought it would go away. 3 days later I don't feel the B.B. type lil bump, but it's red, swollen, extremely painful and warm to touch and expanding in mass, but still under the skin. I'm fishing and won't be on land until tomorrow or next day. Does this sound like Staph? I have cipro onboard and should I take this until I see a Doc?