I completed treatment about 20 months ago, which included radiation and chemotherapy. I've been gradually feeling better in most ways. But one area has gotten worse, The corners of my mouth are continually sore, possibly caused by the radiation. I lick the corners of my mouth and use aquaphor to stop the cracking of my skin. It helps a bit but they still sore.

Is anyone else experiencing this? Does any treatment lessen the sore corners of my mouth. Ay advise would be appreciated.