What could happen if i do not get my sciatic nerve treated? my doctor said i have agitated my sciatic nerve. what is the worse that could happen?

It depends...: On cause/severity. There are many causes of sciatica. See a doctor who specializes in musculoskeletal disorders to determine the cause of your sciatica and to recommend an appropriate treatment plan. Depending on the cause, no treatment may give you perfectly fine outcomes. If the cause is cauda equina syndrome, however, you could have permanent neurologic damage unless surgery is soon performed.

Depends on cause: sciatica can be caused by a pinched nerve in your lower back due to a disc hernation, or a pinched sciatic nerve in your buttocks due to a muscle. How I advise you depends on what the cause of your sciatica is.