Oral cancer symptoms and conditions

My Dad is receiving Kenalog -10 injections into his mouth to help him with the effects of oral cancer treatment, he had SCC2 in the right side of his cheek, the IMRT radiation therapy, plus boost treatments, and brachy therapy did an effective job of treating the cancer, but he had problems eating, problems with saliva, etc.., the injections have been a miracle cure for him, he can now eat and drink without pain, but immediately I noticed his skin was dimply and caved in, I had no idea what medication they were injecting until today, and now I know that I was correct in my observation. He will continue to receive the injections every 6 weeks. I don't have the heart to tell him that the dimpling and caving in of his skin is from the medicine that is making it possible for him to enjoy eating and drinking again. But I sure am glad to have my suspicions confirmed. Thank you for this web site.