There are many laser technologies which work instantly on the rosacea. These are generally safe and are of different types depending on the problem and area to be treated. Like for fine visible small blood vessels on face it may be a different laser or rather radiofrequency device may be used. Whereas if it is a diffuse fine redness of convexities of the face a different laser is used.
The lasers used are:-
ND:Yag Q switched Fractional resurfacing in some select cases may benefit
Gua-Sha facial 577nm vascular or Yellow light laser.