I have been living with SCLC since June 6, 2003 and I have worked just about every day since dx. If he can work and feels like it, go for it. In my case I am a single person and carry my insurance through my employer so I NEED to work if I can. They have been more than wonderful about giving me extra time off for appointments and treatment, etc. Makes life seem a little more "normal" I guess by getting up each morning and going to work. I am afraid if I had to stay home I would go crazy inside a week. Never have been a stay at home type person, even when my kids were small.
As far as his stage, sclc is either limited or extensive and once it is outside the lung it is considered extensive. That is not to say it can not be treated and beaten! Mine was caught early as limited but has since spread out to my lymph nodes and liver. I am having good luck with the chemo I am on and we hope to get it back in to at least a stable mode.
I will be praying for your Dad.
God Bless,
MO