I had a surgery I'm my fifth metacarpal I need to know when the stiffness & inflammation will be gone I mean how long does it take?

Swelling hand op. First ALWAYS best to ask for surgeon. Generally it take 3 to 6 months for full recover. PT exercises will help speed this up. Again these are issues your hand surgeon needs to address..
Depends. Really depends upon the specifics of the surgery. It is not unusual to have some residual stiffness for quite a while - months - and maybe even for life depending upon the initial injury and the extent of surgery. You should talk this over with your surgeon.