Rheumatoid Arthritis Support Group
Rheumatoid arthritis is a chronic, inflammatory, multisystem, autoimmune disorder. It is a disabling and painful condition which can lead to substantial loss of mobility due to pain and joint destruction. The disease is also systemic in that it often also affects many extra-articular tissues throughout the body including the skin, blood vessels, heart, lungs, and...
Are you taking Folic Acid with the MTX? If not you need to be taking some every day. My doctor had me on 800 mcg which you can get at Wal-Mart. That should keep you from getting the mouth sores.
Hope you get them cleared up soon.