According to the Multiple Sclerosis Association of America, "More than 50 percent of individuals with MS identify pain as a significant symptom. For many years, the medical community did not support the idea that pain could be caused by the effects of MS, but physicians today recognize that pain is a common symptom."http://mymsaa.org/publications/motivator/winter-spring13/cover-story/pain

Unfortunately, one of the treatments is to prescribe NSAIDS (non-steroidal anti inflammatory drugs). We are bombarded daily with TV, radio and Internet advertising of these drugs. Dr Chris Centano, a specialist in regenerative medicine and the new field of Interventional Orthopedics, warns against the use of the drugs to treat pain.
http://www.regenexx.com/nsaids-side-effects-nsaids-gi-injury/

The list of dangerous NSAIDs side effects is well known and ever growing. The latest is not just GI upset, but a new study confirms NSAIDS GI injury!