Unless the progression is stopped, physically reallocated sectors is a sign of an ongoing process of disks death (slow or fast). Until total failure. Physical damage can't be fixed.
Main desktop: Debian GNU/Linux Wheezy 64bit w/custom 3.14 longterm kernel - MATE 1.8.1
(i5 email@example.comGHz - 16GB DDR3 - HD6770 w/radeon driver - SSD+RAID1)