It begins by prepping the skin with a thorough cleansing. Then, the photosensitizing agent, aminolevulinic acid, is applied and allowed to absorb for 30-60 minutes. Then, a blue light source is focused on the prepped area, and the area is treated for approximately 60 minutes.
After treatment, sunscreen and sun protection is required, as the treatment will leave the skin more sensitive to sun damage.
Common side effects include temporary redness, stinging, pain, peeling, discomfort, and skin irritation.
Yes, these terms are often used interchangeably.