Laser Genesis and Possible Drug Reaction?

I have scheduled a series of laser genesis each two weeks apart to treat light acne scarring and diffuse redness. I also take sulfamet daily for rosacea and cystic outbreaks. I was asked to discontinue sulfamet two weeks prior to treatment due to possible skin reactions, which means I'll go almost two months without it. I am already breaking out and worry that the skin consequences of not taking the sulfamet will be worse than any improvement I will get with the laser treatments! Suggestions?