So, you have had your laser treatment, what’s next? Most patients, about 90% or more, need adjunctive treatment after their laser procedure(s). Typically, this treatment is Ultrasound Guided Therapeutic Sclerotherapy (USTST). About a month after your laser treatment our ultrasound tech will do a thorough exam, mapping any indwelling veins that are not functioning properly and still remain after the laser procedure. The preferred treatment to eliminate these veins is USTST.