I know exactly what your saying mate.
But once under the knife always under the knife.
As a pinball mate maybe give the black salve or what you are ok with a go before you go under the knife again.
It will remove everything cancerous from under the skin also so dont worry about that.
The next thing you need to do is stop drinking coke and any other product that is acidic as this intake causes cancer of any kind to flourish in your body. Sadly that includes alcohol but,,, you can neutralize this.
Not preaching mate,,, as I struggle meself to give up these good things in life.
Anyways, go alkaline in your diet and you will be surprised how your body changes for the better.
No cancer internal or external can grow in an alkaline environment. Cancer can only grow in an acidic environment.
That is a scientific fact, and I did years of research before I solved my own issues.
Regards... 
There is also a theory out there that a mixture of bi-carb of soda and maple syrup is a good preventative. Same sort of thing, it is alkaline and cancer cells can't handle it. The bi carb mixes well with the sweet maplesyrup, cancer cells are ravenous and consume what it thinks is sweet sugary stuff but it is laced with the bi carb and gets into the cancer cells and kills them.
Brett my brother lives on the gold coast. He is a naturopath amongst other things and is an assoc professor at bond uni. His name is Howard Talbot, might be worth a visit and see what if anything he can suggest to stop the skin cancer recurring.
