Left analog stick messes up after sprinting alot?

I sprint alot in mw2. That eventually messes up my left analog stick. Making the analog stick get sticky,like it would stay to the right when I let go. That makes it hard to play. Is there anything I can do to prevent sprinting alot from messing up my left analog stick.

2 controllers of mine is sticky left analog sticks,are they fixable or should I throw them away?