I’m just one parent here, so all I can tell you about is my own experience: we took Baby Addy to a dermatologist who specializes in treating kids with port wine stains (Dr. Zelickson, you’re awesome) with pulse-dye laser treatment.
Basically, he hits Addy’s port wine stain with a yellow laser; because of the color spectrum, the red blood vessels absorb the yellow light, heat up, explode and die. When they die, they leave purple bruising behind, which clears up within a week. Overall effect: fewer blood vessels. And then we hit them again. And again.
In layman’s terms, it’s weed-whacking. The blood vessels grow as Addy grows, so we hope to weed-whack those suckers faster than they grow with her. That’s why we attacked them early (while they were young, easily-killable weeds), rather than waiting until she was older and the vessels were larger, tougher, and more numerous.
Results? Awesome. The stain is smaller and lighter. But because Addy’s happens to be more resistant (how appropriate for my stubborn eldest), we’re still weed-whacking after 30-some treatments, instead of the 12 to 20 they originally told us she might need. (It’s always hard to estimate, because each stain has different size & depth) But the progress so far has been fantastic. People mistake her stain, which previously lived up to its ‘port wine’ nomenclature, for a sunburn. Yessssss.
Each treatment requires Addy going under general anesthesia, since powerful lasers pointed at a squirmy child’s face would otherwise be cause for concern. I know some dermatologists just use local anesthetic or numbing cream (particularly for older kids or smaller stains), but as far as I can tell, Dr. Z. puts all of his kids under general anesthesia as a precaution.
In other news, I’ve heard that there might be some application for newly-improved cancer treatments to port wine stains: new cancer treatments cutting off blood supply to tumors (depriving them of their lifeblood) could potentially be applied to wreak equal havoc on the blood vessels of port wine stains. I shall stay tuned…