I had a small bump under my ear lobe it was getting big but when I started to apply antibacterial cream to it start going down could you tell me what?

? staph infection. As emergency doctor we are seeing tremendous amounts of staph infection. These are regular skin bacteria that in ordinary times do not do any harm but as they change, they can acquire characteristics to invade our skin and cause abcesses that lot of times require incision and drainage. It is hard to tell without exam to see what this is. See your provider.