I was on Accutane many years before my EC started. Although for years afterwards I would use Vaseline many times a day. At the time I got my EC I was taking loads of supplements which I believe triggered this condition. Someone on here reported taking almost the same list of supplements and when they posted pictures on here their lips looked almost identical to mine.
My fordyce's spots started at EXACTLY the same time as my EC and I'm convinced there is a link. Fordyce's Spots are to do with the sebaceous glands. Sebum is the thing which keeps skin water-proof and elastic.