In recent years, photodynamic technology has been used more and more in dermatology, and it has a good effect in the treatment of many skin diseases.
Photodynamic therapy is a kind of photochemotherapy that has been widely used in dermatology in recent years. Its main mechanism is to apply photosensitizers locally. Due to the difference in absorption and metabolism rates between normal tissues and diseased tissues, photosensitizers will accumulate high concentrations in diseased tissues after a certain period of time. After a series of metabolism, photosensitive substances are generated. After being irradiated by a specific wavelength of light, the diseased tissue is purposefully, it is a popular treatment.