Therapeutic agents for skin diseases such as atopic dermatitis and athlete’s foot can be obtained from naturally occurring raw materials without requiring the use of steroids and their severe adverse effects. The plasma display panel includes a plurality of scanning lines. A regulating member is arranged to act on said first and second damper shafts so as to achieve a rotation of either damper by rotation of one damper shaft at a time. The invention allows the inclusion within a single image of other media, such as paper, fabric, dry acrylic elements, watercolor, waterbase crayons and pencils, felt pens, waterbase inks, water mixable oil paints, oil pastels and oil paint sticks because of the bonding abilities of acrylics.