nsp;</span>burning <span  title="" class="an ">&ensp;</span>sensation <span  title="" class="an ">&ensp;</span>elicited <span  title="" class="an ">&ensp;</span>by <span  title="" class="an ">&ensp;</span>topical <span  title="" class="an ">&ensp;</span>application <span  title="" class="an ">&ensp;</span>of <span  title="" class="an ">&ensp;</span><span  title="CAP" class="an CAP">FK</span><span  title="" class="an ">&ensp;</span>to <span  title="" class="an ">&ensp;</span>the <span  title="" class="an ">&