Some of the redness I thought was from the UV lights at the gym might have been from heating up at the gym as well as anerobic weight work. I've changed my workout
accordingly -- 12 minute sets of low-level aerobics instead of one harder 40 minute set. Also changed diet, eliminated hot drinks, coffee, beer, etc.
Last two days started taking ASPIRIN. Several sites/articles suggested aspirin can cut down rosacea inflammation. So if it's too hot outside, I pop a baby aspirin.