After aminolevulinic acid application you should avoid exposure to sunlight or bright indoor light (e.g., from examination lamps, operating room lamps, tanning beds, or being close to lights) up until the time of the blue light treatment.Wide-brimmed hats or similar head covering can help protect you from sunlight or sources of light.
Sunscreens will not protect you from sunlight or sources of light.
Reduce your exposure to light if you experience stinging or burning on the treated areas before blue light treatment.
Do not wash the treated areas before the blue light treatment.
You and the doctor will wear eye protection during the blue light treatment.
During the blue light treatment you will experience sensations of tingling, stinging, prickling or burning of the treated skin. These feelings of discomfort should improve at the end of the light treatment.
Following treatment, the actinic keratoses and possibly the surrounding skin will redden and swelling and scaling may also occur. These changes are temporary and should completely resolve by 4 weeks after treatment.