Papillon treatment and ulcers

Hi I recently had papillon treatment in April/May this year and have just finished the last course of chemo for bowel cancer (cancer is low down). A week ago. The ulcer from the papillon treatment has become inflamed and along with cuts (due to thinning of the skin caused but creams etc) and piles, there is slight bleeding which is causing me so much pain. I am taking paracetamol and ibuprofen but am in agony when I go to the loo - is there anything I can do to ease the pain ? Thank you lisa