sir my father is 67 and he is having acute pain in his left leg downwards. in mri it was detected that L4 and L5 disc has slightly come out of his normal position which is compressing the nerve passing there from and creating acute pain we have undergone the treatment of pain killers and injecting gel but it has not worked amd it was all for short term relief and now six to seven months have passed and there is no correction plz plz plz you suggest me the best way to overcome this problem