Prominent facial veins post Botox or fillers.
It’s very common for any type of injection in the face, not just Botox/Dysport, to cause temporary dilation of the veins in the area. This usually lasts 20-60 minutes. There are no studies on this, but I’m guessing it’s from the increased fluid volume in the skin near the veins. The veins are fine and then just adjust to the new slight increase in pressure around them.
We’ve never seen this to be permanent or even lasting longer than a few hours. I’ve also never seen any studies on this or comments at conferences about it being a long term problem.
Some people, especially those with the very translucent, pale skin sometimes develop more visible facial veins as they age. If you look at their legs, they generally have the same problem there.
Hope this helps, Dr. I