Medical plaster, also called a sticking plaster, adhesive bandage, or simply plaster, is a small medical dressing used for injuries not serious enough to require a full-size bandage.The medical plaster protects the wound and scab from friction, bacteria, damage, and dirt. So the healing process of the body is less disturbed. Some medical supplies wound dressing have antiseptic properties. An additional function is to hold the two cut ends of the skin together to make the healing process faster.They come in a variety of sizes and shapes.A hydrogel dressing. An entirely transparent adhesive bandage, with a transparent hydrogel pad and adhesive waterproof plastic film .The backing and bag are often made of coated paper, but may be made of plastic.Butterfly closures bandage are generally thin adhesive strips. It can be used to close small wounds. They are applied to pulls the skin on either side of the wound together. They are not true sutures, but can often be used in addition to, or in place of real sutures for small wounds. Butterfly closures bandages do not need a medical professional to be placed or removed. It is a common item in first aid kits.