You can buy them in drug stores without a prescription. Your family doctor will tell you if he or she thinks this type of bandage is best for you. A bandage does pretty much the same thing. If you have stitches, your doctor will tell you whether he or she wants you to use an antibiotic ointment. Most minor cuts and scrapes will heal just fine without anitbiotic ointment, but it can speed healing and help reduce scarring.
Scabs are the body's way of bandaging itself.
They form to protect wounds from dirt. It's best to leave them alone and not pick at them. They will fall off by themselves when the time is right. You can close small cuts with special tape, called butterfly tape, or special adhesive strips, such as Steri-Strips. You may need stitches if the wound is deep, the edges won't stay together or the edges are jagged.