What can I do to treat bowel obstruction?

No home remedies. Bowel obstructions are potentially life-threatening emergencies that require urgent hospital evaluation and management: first, to diagnose the exact cause, and then to come up with a treatment plan. Some may simply require bowel rest, IV fluids, tube decompression of the stomach, and "time"; others will require emergency surgery.
Pain. Usually severe abdominal pain either localized or diffusely thru the abdomen, fever, distention of the abdomen qand a change in bowels. If in doubt go to pcp or er and get an xray or ct scan. The sooner it is diagnosed and treated the better you will.