Mouth sores can be a symptom of lupus or a warning sign of a lupus flare. They may or may not be painful, but they still need medical treatment. Lupus is a chronic autoimmune condition that causes ...

This informational guide, part of Popsugar's Condition Center, lays out the realities of this health concern: what it is, what it can look like, and strategies that medical experts say are proven to ...