there are seriously 129 drs sitting around phones waiting to answer questions? anyway, anything new about the whitish patches from pigment loss called something starting with a T [tillinitis or something unlike trichotillomania ]was reportedly sometime responsive to the active agent in pepper or piperazine , i m probably misspelling, but anyway, the question is has anyone heard anything about long twrm effects of using melatonin for sleep at 10mg per night? Just seems like coincidence that Ii started using melatnin about 10 years ago and then about 4-5 years ago I started getting little whitish patches on my back and arms that has spread now to hands, neck , face