LED LIGHT THERAPY

Photodynamic Therapy (PDT) uses a drug that is activated by light, called a photosensitizer or photosensitizing agent, to kill cancer cells. The light can come from a laser or other source, such as LEDs. 

Photodynamic Therapy is most often used as a local treatment, which means it treats a specific part of the body.

When cells that have absorbed photosensitizers are exposed to a specific wavelength of light, the photosensitizer produces a form of oxygen, called an oxygen radical, that kills them.  Side effects can include redness and swelling, which usually ease after a few days.