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1223565 tn?1280078684
Black sweat stains
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!
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Avatar universal
think u shold get a sweat test inform ya doctor about this
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144586 tn?1284669764
Yes.

The underarms contain bacteria.  You are taking numerous antibiotics that kill bacteria. When some varieties die they turn black. This is why one sometimes has a blackened stool after a course of antibiotics.

Use soap and a topical antibacterial agent under the armpits to wipe out the population.
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way off the beaten track!, BC
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