Rash treatment
I believe the answer is:
talc
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">rash treatment</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for talc that I've seen before include "Mica - scented body powder" , "Bathroom powder (abbr)" , "In brief, popular body powder" , "Toilet powder - mica" , "Softest mineral on Mohs hardness scale" .)