Do you mean sore mouth kind of like teeth pain (whole mouth or the funky teeth pain feeling) or do you mean swallon gum?
I have swallon gum problem and sometimes I have teeth pain problems. This is due to the medication (prenisdnole)
Mouth sore, as jhmom said, it is part of lupus flare. I am currently getting it. It is exactly as jhmom (Stacie) described. It can take two weeks for the pain to go away, but it can take longer time for it to heal 100%.
a reaction to mosquito bites, bee sting/wax-->this is more like an allergy, not lupus.