I am sewing bridesmaid's dresses for my daughter's wedding. Today while pressing the bodice of one dress a drop of sweat fell from my forehead and landed on the fabric and it has left a spot. The fabric is polyester crepe back satin. Any suggestions on removing the spot without having to clean the whole bodice. I have not started sewing the skirt yet so the bottom is still the raw edge. I never thought of needing to wear a sweatband when sewing before but it's been mighty HOT this summer!