Platelet rich plasma (PRP) is a great way to promote healing within your own body without the use of synthetic medications.
"One component of the blood stream is platelets. Platelets are cell-like particles that are smaller than red or white blood cells. These tiny platelets release a soup of growth factors at the site of injury. The help in the clotting process by sticking to the walls of the damaged blood vessels and plugging the rupture. The most important compound is PDGF or platelet derived growth factor, which causes stem cells (more on those in a minute) to be released from vessel walls and migrate to the site of injury. Physicians are able to take a small amount of a patient's blood, isolate and concentrate the platelets by spinning the blood in a centrifuge, and inject the growth factors they release directly into the injured area, where they promote the body's natural healing response."