Hi The Patient Is Undergoing Chemotherapy And Radiation For Colon
Use Neosporin ointment.
Hello dear welcome to Ask a doctor's service.
I read your query and here is my advice.
I think you can search for silver sulfadiazine even online since no prescription is required.
If he has burning sensation and the start of a skin infection you may use Neosporin ointment also found over the counter without a prescription.
Also use cotton ,wide and comfortable clothes.
Hope I have answered the question.
Let me know if I can assist you further.