I don't want to pull you away from seeking out better options but are you sure you tried EVERYTHING?
I had a friend who thought she did. Ivermectin (Solantra), azelaic acid, sulfur, zinc, etc. etc. but she never tried niacinamide. I actually got her buying a Korean ointment I use for adult acne and it got her rosacea under control so much in under 2 weeks she doesn't even wear make-up anymore. If you are curious it is called Dr.Althea 345 Relief Cream. Might be worth trying