Does Exposure to UV Rays Help or Harm the Condition of Vitiligo?
+1
It can do both, but it is possible to start skin cancer so that's a concern
UV rays can hurt regular skin and skin with vitiligo can be harmed even more, possibly getting skin cancer from exposure. For this reason, I recommend avoiding the sunlight and covering the areas with sunscreen. One new treatment for vitiligo is a pill called Heliocare, which seems to improve it. Good luck.