Photodynamic therapy is the general name given to therapy using light-lamps of different types. Such light sources (filtered light or LED) are commonly used by dermatologists to repair skin and even psychiatrists to fight depression and sleep disorders (such as the winter blues etc). The effectiveness of blue light is still being studied on a clinical and institutional level, however, since the FDA approves of light therapy (especially blue light), many medical practitioners use it to great effect, often claiming very good results for the majority of their subjects (unofficially).
Varicose, spider veins, acne and the removal of marks on the skin due to discoloration (caused by wounds or surgery) are the most common uses of light for skin therapy. New uses of light, specifically of blue colored light (with a wavelength between 405-455 nm), are still being discovered today. Many treatments combine the use of this type of light with red light and other medication to cure many skin afflictions, the most common of which are acne and some other bacterial infections. The following are some of the other uses of blue light which have proven effective.
Anti aging light treatment
The treatment of skin to reduce the effects of aging is called photo-rejuvenation. The application of focused light can increase the production the chemicals in the skin which make it arrear fresh and youthful (collagen and elastin). Smile lines, age lines and wrinkles are commonly treated with light of various frequencies, including blue light. Many people all over the world regularly use this type of treatment as an addition to cosmetic surgery or other skin care treatment.
Drug allergy symptoms on the skin surface
Allergies which cause inflammation and discoloration of the skin are commonly experienced with the use of medicines for other purposes. Even though these effects are actually side effects of other causes usually unrelated to the skin, the symptoms can still be treated using light therapy.
This condition causes the skin on the face; cheeks, nose forehead neck and even the chin to appear red as though burnt raw or flushed. This skin condition is not medically understood to a great extent and is usually chronic and untreatable with medication. This condition is known to cause psychological difficulties as it affects the appearance in a negative way and can affect a person’s confidence and self esteem over a long term. The reason for this condition is understood to be damaged blood vessels, and light therapy using pulses of various types of mixed light in certain instances has been seen to disintegrate these damaged vessels, helping remove this symptom and leaving the skin looking natural and healthy without the use of drugs or creams.
www [dot] medscape [dot] com/viewarticle/499713_2
Cosmeticsurgery [dot] com
The National Rosacea Society website