Hi I was suffering from acne at the age of 17 almost used many drugs, including isotretinoin and the doctor wrote an ointment with cortisone, that was in 2012. I did not know that it had cortisone, I used it a lot till 2016 my skin condition got worse. I went to the doctor he told me it's rosacea and the reason is cortisone. It made my face burning, itchy and very sensitive. He wrote me isotretinoin again with other ointments. And after I took my dose of isotretinoin, I took 6 sessions of radio frequency (rf), that was by the end of 2018. Nothing changes my face still getting flare ups, itchy and everything. Recently I read about msm and how it can help your skin. I ordered it online. Still no difference. I think my face now is worse than before, it gets flare up almost every day and night when eating, showering, sleeping, walking etc. What should I do now? Is there any hope that I could get cured?