Disc protrusion at T11-12,L4-5 and L5-S1 levels can be conservatively managed and with treatment can slip back into original space. Conservative treatments like hot and cold compress, stretching exercises
low impact exercises, non-steroidal anti-inflammatory drugs, specially designed corsets, spinal manipulation and traction and epidural injections are tried. If everything fails then laminectomy and other spine surgeries may be contemplated. Please consult your doctor regarding this.