no, but? it is physio-psychological fear or certain protein could trigger your immune system. I got it from preparing a fish with fish-spices mixing with bear hands. It has sea salt, coconut and peppers, and some exotic ingredients. The "silky slippery liquids" releases by mixing may have triggered my skin( within a month), the "paint sprays" that hide the spot in the ceiling, very hard to get rid off, it affected my index finger, then I use the same hand for preparing a fish, a few days later I got this spot.. the Tacrolimus ointment is working on me, do not stop and keep using it. There are two types of vitiligo, one spread to face and lower body the other's hands to hands ( runs opposites, pairs pattern), lower genital, stomach, few spots, the starting size 2-3 cm size, better control at this stage.