Let It Dry
It’s very tempting to jump right in and clean the mud immediately, but it may make things easier in the end if you allow the mud to dry. One thing you can do right away while the mud is wet is scoop up any clumps with an old spoon and paper towels. Then, allow the mud to dry.
Once the mud has become dry dirt, vacuum the area thoroughly, going over the spots multiple times. Use a full-sized vacuum, not a hand-held one, because you’ll need plenty of power to get the dirt up. If you need to, use a dry scrub brush to loosen the dried mud before and while you vacuum.
If, after the scooping, drying, and vacuuming, there is still a stain, then you need to take more action. If you have a carpet that is not acetate or rayon, you can use a cloth to rub in some rubbing alcohol. Then cover the stain with several layers of paper towels dampened with rubbing alcohol. The paper towels will begin to absorb the stain.
As you see this discoloration happening, replace the paper towels with fresh, alcohol-dampened ones. Make sure you keep the stain and the paper towels damp with the alcohol.
Another method to attacking the stain after vacuuming is to use dish detergent. Mix 2 teaspoons of liquid dish detergent with 2 cups of hot water in the mixing bowl of an electric mixer. Then whip the mixture at high speed until you get a thick, rich foam.
Using a sponge, apply this thick foam to the stain and rub it in well. Then rinse the sponge and go over the area with warm water. Finally, use clean rags or paper towels to blot the carpet. The stain should be soaked up into the rags as you blot.
Now that you know how to clean stains made by mud you don’t have to hover around the doors so much and police everyone’s shoes.