Punching Bag Tips After I Use The Punching Bag, My Left Wrist Stings?

After i use the punching bag, my left wrist stings? - punching bag tips

I recently started taking a heavy bag as I was, my right hand is much stronger and I have no problem, but I left of me is less effective and injured his wrist when I tape, I can not use gloves, just as bad last time I try, I can tell you some tips for drilling and contribute to the strength of the left arm and wrist pain ...