Yes brillig! Me too! I've tried sooo many treatments trying to get rid of the chelitis for two years now! After MUCH investigation on the internet, I switched to a toothpaste without Sodium Lauryl Sulfate, in my case Sensodyne Gentle Whitening, and presto chango, all irritation gone by evening! It's been over a week now, and my mouth is still normal. I thought initially, it was a beeswax allergy and quit using my lip products, but continued to have issues. Now I know what the real culprit is. Not sure why it suddenly developed after many years of using toothpastes with that ingredient. Hope this will help others!