Whether rosacea is an autoimmune disorder is still debated among researchers.
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Is Rosacea Autoimmune?

Whether rosacea is an autoimmune disorder is still debated among researchers.
[…]
It’s not uncommon to experience dry, irritated eyes and a headache simultaneously. While dry eyes don’t directly cause headaches, they can aggravate headache symptoms, even though they may seem unrelated. […]
Most insurance plans don’t cover OptiLight treatments, even for dry eye therapy, because it’s considered an elective or cosmetic procedure rather than a medically necessary one. […]