Phototherapy is a process that uses a specific type of light to kill acne-causing bacteria and make your skin less oily. It is remarkably effective in treating blemishes unresponsive to other treatments. Doctors once used UV radiation from the sun to treat acne. However, while it can clear up acne, it can also cause skin cancer .
Side effects and risks of phototherapy depend on the type of light therapy used. Phototherapy for skin conditions carries the following risks: Premature aging: UV rays can damage your skin cells. They can cause your skin to look and feel older more quickly. This premature aging of the skin is also known as photoaging.It’s used to treat some skin conditions, including skin cancer and psoriasis, acne and warts and other types of cancer. Now, RLT is being investigated (or already in use) for treating a wide array of health conditions. What’s confusing — and controversial — is the effectiveness of the treatment for the purposes it’s being promoted.
Red light therapy involves using devices fitted with LED bulbs to apply a narrow spectrum of light to bare skin. Specifically, this is a range of light wavelengths, measured in nanometers (nm), that includes red (630 to 660 nm) and near-infrared (810 to 850 nm).
Treatments with 40mW/cm^2 of blue light for 20 minutes led to an increase in pigment, and treatments with 80mW/cm^2 of red light for 20 minutes led to a decrease in pigment. Treatments with blue light were conducted once a week, then the red light was 3-4 days later - for a total of 2 treatments per week for 4 weeks.
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