It would be dangerous to speculate on cgys of radiaton and where they should be applied. This is highly individual, but based on a particular patients situation. You are askijng people here a question that no one can give you a definitive answer for, nor guide you in if this enough or not. There is also no correlation between tissue damage in the form of burns and what is actually happening with the malignant cells as a result of radiation. Radiation burns and other issues are not plesant, but you do not want to have him not complete hes prescribed course of treatmnet unless absolutely necessary.