I had/have rosacea, also, a mild case, that took doctors of several specialties to finally diagnose (I finally went to a big teaching hospital and made appt with the head of the Dermatology Dept). I, too, get the occasional
skin tightening, itching and the symptoms come and go at random, no food/drink makes it better or worse. I am sensitive to many things I put on my face, so when I find one that works for me, I stay with it.