Personally, I would say that what you and your hubby did was the most preferred arrangement. Because fever is often one of the first few signs of other conditions. Therefore, it is best to keep the child home when he/she has fever. Cough and flu, on the other hand, are highly contagious. So, it is also best to avoid contact with other children to prevent spreading the virus to others.
Perhaps, try to introduce some supplements (multivitamins, probiotics) to your child to help boost his immune system? That is if he is not getting enough from his daily diet. I personally find vitamin C very efficient in prevent flu. Not sure if it is psychological though. Just a suggestion for you to consider.
Btw, hope your son is feeling better and take care of yourself too!
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