Vascular Lesion Lasers Pulsed dye lasers can effectively be used for the treatment of hemangiomas, port wine stains, vascular lesions, capillaries, and telangiectasias of the face, neck and chest. The pulsed dye lasers have also proven very effective in the treatment of warts. The side effects of pulsed dye lasers include bruising of the treated area for 1 to 14 days.