I'm grateful and overwhelmed by the improvement to my skin and sincerely wish I could help other Rosacea sufferers. The main triggers for me is heat, humidity, sun and intense exercise and since using the msm paste have had no new outbreak in spite of enduring all of the above. The way I use it is : at night I wash my face (any cleanser is good but one with tea tree oil the best) and then use moisturiser. Wait a few minutes and apply msm paste all over, even on skin under eyes. Wait until it's fully dried on your skin and then very gently rub off the excess dried white crystals with your fingers (otherwise it will end up on your pillow!) and rinse off with luke warm water next morning. If Rosacea is very bad you can do this whenever during the day and just rinse your face before going out. I've had remarkable improvement from Level 4 Rosacea to completely clear skin in one week. I use msm pure crystals;symply put one teaspoonfull in palm of my hand and add few drops of water to make paste. Then simply plaster it on my face. Don't dilute too much, leave it still a bit grainy. I know msm is not a cure, but please try it. I've done laser, red light therapy, Rosex gel, tea tree oil and hydogen peroxide with hardly any improvement. I have found hemp seed oil to be very good, non-comedogenic moisturiser and ice cubes also calm my skin. At the moment I only use the msm. Good luck to all.