I had a csection two months ago and i have a huge lump thats sore and it has like what looks like dying skin on it?

It is not feasible to provide a meaningful opinion without examining you. It is imperative that you contact your doctor for an in-person evaluation and treatment. Wish you good health!

You have failed to describe the location of the "huge lump," but the first thing that comes to mind is a hematoma, a recognized complication of the Cesarean. The obstetrician who performed the surgery should be seen promptly.