First, clean the comic by blowing off loose dirt. Use a gentle cleaner and a microfiber cloth to clean it. To press, put the comic between smooth cardboard and stack some heavy objects on top. Make sure the pressure is evenly distributed.
Cleaning a comic involves using a soft, dry cloth to remove surface debris. For stubborn dirt, a mild soap solution on a damp cloth can be used. When pressing, place the comic in a protective sleeve and put it under a flat, heavy object. This helps flatten it without causing damage.