Hi, may I answer your health queries right now ? Please type your query here...Hi DR...first of all this is great! I have a lump on the upper inner side of my left arm near the bra area. I had it check by Doctors. What told at first it was a spider bite, then told it was a cyst. It has been there over 2 years, small about 1 cm in diameter. Flat and skin color. In December I was on penicillin for an inner ear infection and this lump looked like a small water balloon. This past week it become painful and very red. Last week a bit of pus came out with a lot of pressure behind it. I had used hot washcloth and then last night used it with salt. Last night A LOT of pus came out with again a lot of pressure. The color looked more like a mucus green color a bit of whitish at first. The a blood slimy color. Please return an answer at your convenience. Thank you, sincerely