Is Vein Treatment with KTP Laser Safe for Patient with Pacemaker?

I agree with the recommendations to leave these capillaries alone as it is likely that they may regress spontaneously. 

Ulceration was more likely in the past where high concentration sclerosant solutions were used, such as 21% hypertonic saline. Remember that physiologic saline solution that is given intravenously while you are hospitalized is 0.9% whereas hypertonic saline is 23 times more concentrated...

Either laser or electrocautery would be preferred over sclero. Sclero can be tricky and if there is extravasation of the solution you can run into problems. If you do go this route, make sure the physician is very experienced. If you vessels are small the V Star pulsed dye laser would be...

Venous lakes are treated with long pulse 532 or 1064 nm lasers. More than one session will be necessary and likelihood for recurrence in the future requiring maintenance treatment. 

The dose is no more than 10 cc of the 1% solution. This is a safe dose when administered by an experienced vein specialist. Seek a specialist certified by the American College of Venous and Lymphatic Medicine. 

If the vessels you are talking about are on the nasal alae (the side of the nose where it meets the cheek and upper lip), these are arterial capillaries, and quite difficult to eradicate. The best way to eliminate them (if they are big enough to stick with a 30-gauge needle), is via...