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...

the mtx sometimes causes those for me, the rheum has me use this crap called magic mouthwash which the local pharmacy compounds for me - and it feels like Maalox with other stuff in it - it's a swish and spit (sorry for the gross play by play). the prescribing bottle actually says the words "magic mouthwash". (funny). but I remembered you are on mtx hiatus right for your enzymes so it can't be the mtx?
depot
Doodle-nope.
But do contact your doctor, if it continues.