1. The first step you should do is a fabric test on your carpet. Your rug has different fabrics that react differently to certain things; therefore, this part is crucial. Choose a hidden part and apply the hairspray if the cleaning solution does not damage the spot, then it should work on the stain. However, if it does, swap it out with acetone-based nail polish remover, rubbing alcohol, white vinegar, or WD-40.
