My go to stain cleaner is 2 tbsp hydrogen peroxide, 1 tbsp regular Dawn dish soap, and 1 tsp baking soda. Mix together and apply with a soft toothbrush. It is the best stain remover and removes set in stains that Shout won't touch. It also works on colors. You might want to try this if the other suggestions don't work. Oh, it is also good for removing blood and grease. Good luck.
