This depends on how sick I am. No matter how urgent my pending works are, if I do not have the energy and can no longer move my body then I will not do it. However, if my sickness is manageable and the work that I need to do won't require me to do tedious activities, then I might as well do it. I do not want to have my co-workers do the work that I am supposed to do--much as I do not want to be a burden to anybody on any occasions. Moreover, it would also be quite a hassle if these pending works would pile up.
On the other hand, there are also works that I need to accomplish on a certain timeframe; hence, in this case, postponing them is not an option. If this will be the case, then I would really need to ask a favor from my co-worker, which I would very much like to return after my full recovery.