Lower back muscle tear...how long will i be off work...2 weeks later still the same pain..i'm doing therapy and muscle relaxer?

Depends: The extent of the tear, your ability to rest and stretch the injured area, and the type of work you are returning to are important factors your doctor will have to consider. If medications and rest aren't making a difference yet, seek the help of a physiatrist (pm&r) to upgrade your therapy with modalities that speed circulation and healing.