I had Osteomyelitis (bone infection), in the long bones, when I was in Kindergarden. I remember being bedridden for a long time and the doctor coming by regularly to inject me with penicillin. I was almost rejected from military service as a result. They waived it since there was no apparent long term damage. It's not that common in adults.

From the Mayo clinic site "Skin cancer. If your osteomyelitis has resulted in an open sore that is draining pus, the surrounding skin is at higher risk of developing squamous cell cancer."

I would have to chime in with Brian and everyone else that, given your adverse health history, you would be better served at a Comprehensive Cancer Center and with a medical team that you can trust.