Material preparation: essential balm, cotton swab and a basin of water.

Step 1: Drop essential balm on the dirt of foam rubber on clothes (essential balm is an organic solvent that can dissolve with foam rubber).

Step 2: Wipe off the foam rubber slowly with a cotton swab.

Step 3: Carefully scrub the part of the clothes from which the foam glue has been removed by hand.

Step 4: The styrofoam has been removed from the clothes.