I need to know how to make a friend have a bowel movement after she had a back and neck injury?

Bowel medications: If your friend has a spinal cord injury (with paralysis), then you should consult a physician to ensure a safe technique. If the constipation is due to pain medications, it is wise to take a stool softener once or twice daily while taking pain pills. For a home remedy, try a Dulcolax 10 mg suppository placed in the rectum and she should have results in an hour. See a doctor if there is no result.