For the past month or so, I have been noticing that all my shirts (different colors and fabrics) have started to show black stains in my arm pits. I have never seen this before and I have not changed my deodorant or my laundry soap. I am currently taking Tri-nessa, Doxycycline and Spironolactone; all for my acne. Could one of those be causing my sweat to turn to black on my clothes?
Thanks!