Suggest Treatment For A Large Bump On The Stomach

hi I had a large raised bump on my belly. it appeared Monday jan. 19-1215. since then it has continue spread,its very painfull,very warm, for the next 20th-thru . for the last 3 days if I sit up straight, try to get close to the sink , can not stand or sit up straight, bending over is painfull. ea. time it will burst and ozze, so much will continue, and soak thru pants, shirt, panties. it is enough to run down my leg, it is anything from puss,clear or blood mixture, but its brown to greenish, its has grown 2 times the size it was it is very tight, trobbing my neck at the base of my head is so stiff it hurts to turn. have continuous miagraines,