First, you vacuum the stained area to get rid of hard particles and leave you focusing only on the stains at hand. This is crucial prep work.
Second, treat the spots with a mixture of water and vinegar with a ratio of 3:1. You need to let this mixture to work its way into the stained textile. Five minutes should be enough.
Three, place a towel on top of the stained area and apply a heated iron. The pressure and the heat cause for the stain to be transferred into the towel much like a reverse temporary water tattoo.