Thanks, OP. I did some quick research on it, and it seems like it would have the opposite effect. One of the side effects listed was a sensitivity to sunlight. Also, staining of scar tissue was listed. But, on the flip side, there have also been studies showing that it is actually helpful. I plan on bringing it up with my doctor. Thanks!
As an added bonus, it also helps to treat Bubonic Plague. One less thing to worry about.
There are many skin issues that could cause discoloration. One indication of vitiligo would be that it glows under a black light, like the hands in this image.
I'm not an expert (AKA dermatologist) but I know vitiligo tends to start around joints and the face. It usually spreads from there to the rest of your body.
However, it could start elsewhere but the fact that these spots on your back are the first ones you're noticing makes me think it's less likely that it's vitiligo, though it's still possible.
Best thing you can do is get yourself a black light (Amazon has some small handheld ones) and a mirror.
Turn out the lights, get naked and shine the black light over your body slowly as you look for spots that glow. If it's vitiligo, you'll likely find other areas of your skin that will glow but haven't fully turned white yet. They may even be tiny spots that look like a bunch of freckles.
I'm saying to get completely naked because vitiligo can effect genitalia as well.
I'm not sure...I'm super white too but I never thought the vitiligo spots looked greasy. But the zinc-based sunscreen I use leaves a white, dry residue so maybe that will help? https://smile.amazon.com/CETAPHIL-Sheer-Mineral-Sunscreen-Lotion/dp/B08HJGVNY9/ref=sr\_1\_2?crid=3R0NUC2PF5EBL
I bought a $13 UV flashlight off of amazon to confirm mine (as well as asking my dermatologist). Shine it on your skin in a dark room and the Vitiligo will glow.
Not all of my patches itched. The ones that did itch were on the back of my scalp. Itching has said to be a symptom of vitiligo so yes. In this book: https://www.amazon.com/Victory-Against-Vitiligo-successful-Practical-ebook/dp/B00I6T4X28/ref=nodl_
The author also experienced itchiness. I thought it was a good read. Only 10 bucks and I would recommend. But keep in mind, everyone may have a different root cause, which will require different approaches.
How much was that? And won't a terrarium lamp do the same? https://www.amazon.com/Zilla-Reptile-Habitat-Lighting-Fluorescent/dp/B001F97ISM/
Do you live in the US? Something like this (not endorsing this particular one as I have not used it. But do look for one that is 365nm). You shine it on your skin (but not in your eyes—UV light will damage them). Any vitiligo spots will fluoresce (glow white) under the light. It is not 100% definitive (you would need to go to a dermatologist for that), but it’s cheap and a pretty accurate method. In fact, dermatologists use a similar instrument called a Wood’s lamp as part of their exam.
If you have a pale white skin tone, you can also use the black light to search the rest of your body for other vitiligo spots. I have a small one in my armpit that I never would have found otherwise.