The doc is right - it is normal to be up and down with depression. It really is like a rollercoaster. Does he have any outpatient care eg. a community psych nurse or anything that you can call if needs be?
I hope he adjusts ok to being back at home. Give him time and you will see an improvement Im sure. When I left hospital after 4 months, it was hard to get abck into home routine again.
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