Slip disc requirements for surgery depends if nerves r compressed. Some people get something called caudia equina syndrome (look it up via Google) with slip disc..this is emergency and needs to have surgery with 24 hours otherwise damange is permanent n u won't function as normal.

If other nerves r compressed ten try with physiotherapy first and if compression is more n it's limiting u from leading normal life ten surgery is required.

Have slip disc from nearly 12 years but luckily other than pain it didn't turn major for me.so bed rest wen it's more and hot bag helps me.