asked the first doc why i had more pain after the first chemo treatment than before i knew i had cancer. he said, the cancer could be growing, or it could be shrinking or the tube they put in my chest to drain the pleural fluid could have caused scar tissue. So the docs don't know the answers. Some times when there is an injury to the skin though, the itching and pain as it heals is bothersome. perhaps the same idea for this. praying for you to feel better. pammie.