Radiotherapy, also known as radiation treatment, is the controlled use of high energy X-rays to treat many different types of cancer. About 4 out of 10 people with cancer have radiotherapy. The length of each course of radiotherapy will depend on the size and type of cancer and where it is in the body.
Radiation treatment damages skin, at best the damage is minimal, sometimes it is like sunburn, at worst, it is bad. There doesn't appear to be any consistency of advice amongst the health care providers that you tell us about. We are not experts in the field and you should always follow the advice of your medical teams. However, both you, and your teams, may find the information held in these pages useful.