Hi there. Try soaking them in really salty water with a little nappysan added. I have found really salty water gets and runs of colours out of clothes AND also any stains which dont come out with just nappysan. Dont need the expensive salt, just plain ol' salt make sure you put it in hot water first to dissolve it and put clothes in when cooled down. Should get most of the colour out for you!! (may need to re soak them again depending on just how much red is in there!!)