D.C.
I got this information from Hasbro's website. Hope it works!
When attempting to remove PLAY-DOH compound do NOT use hot water or cleaning solutions of any kind.
To remove PLAY-DOH compound from carpets or fabrics, allow it to dry completely, then loosen with a stiff brush. It may be necessary to vacuum clean or also wash with gentle soap and cold water.
You may need to repeat the process in order to completely remove the PLAY-DOH compound.