I have a friend of mine that works for a sandwich shop. Yesterday, she accidentally sliced her thumb while opening a metal can, even cutting through part of the thumbnail. She quickly bandaged it up to stop the bleeding, but because they were so busy at the time, she was asked to stay on and work till the end of her shift, just on register instead. Several hours after she went home, the thumb started to hurt again, so she went to the hospital to see if anything else needed to be done, medication, stitches, etc. Now, her job is denying workers comp, saying she should've reported the incident immediately. Is there anything we can do about this?