Does Shout Stain Clothes . Waiting any longer could mean putting your colors at risk, especially when using shout ® advanced ultra concentrated gel brush on bright, khaki, or fluorescent colored clothes. Then splash on a little white vinegar and let it foam for a couple minutes. Shout Advanced Stain Remover Gel, 14 fl oz from www.walmart.com Use the other clean cloth to rub the stain gently. Drying clothes in the sun may also help to bleach out the mildew stain. Triple enzyme formula laundry stain remover.