How to clean a sexdoll? For TPE sex dolls, the cleaning process is similar but requires extra care. Begin by wiping down the doll with a damp cloth to remove any surface dirt or debris. Then, mix a solution of mild soap and warm water and gently wash the doll's body with a soft sponge or cloth. Be sure to avoid getting water in any openings, such as the mouth, vagina, or anus, as this can cause damage to the internal skeleton or mechanisms.