I think it's very much up to the individual. I only took off the two weeks I had the radiotherapy (I was on the fast trial, 3x the dose in one week). But then my company only pay one week sick pay, so I had no choice but to get back as soon as I could.
I managed, but I think a week or two extra, just to have some 'me' time would have done me the world of good.
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