How is PDT performed to remove Actinic Keratoses?

The skin is swabbed to remove oils. Aminolevulinic acid is then applied to the skin and left on for 60 minutes. The patient then rests in a reclining position with goggles on while a blue light shines on the skin for 16 minutes. In some patients, Intense Pulsed Light (IPL) may be used instead of the blue light to help with brown spots and blood vessels. A titanium/zinc sunscreen is then applied.