Hello,
MY daughter was diagnosed with Vitiligo at the age of 12 now 2 years later we are still dealing with it. We have been very fortunate to have kept our under control. But I will say I am very noritic about staying on top of it. It has been more challenging these days as we are in the thick of the teenage years :-)
I took my daughter to a homeopathic clinic and it showed that she was lacking and enzyme in her gut. We did a liver detox and cleaned out her gut with supplements...all plant based. In conjunction with the supplements we did a laser 2-3 times a week called Xtrac. My daughter regimented almost 99%. You cant tell that she has it now but unfortunately I see some spots coming back and my dermatologist just got rid of the Xtrac so now we are trying to get an in home phototherapy light. I do believe that these work. The key is to be consistent which is challenging these days.
Best of luck to you and your son. Hang in there I think that there is going to be some amazing treatments to come in the near future.