No reaction to Levulan blue light therapy even though the Levulan was applied for 70 minutes. What could be the reason?

January 16, 2024
Asked By:kaltbaum in Walnut Creek, CA

Levulan/light therapy applied to my neck and chest at the end of 2023. I had no reaction to the procedure. At my follow up, I let them know I had two spots I was concerned about.They were biopsied- both came back AK's. They advised C02. After sedation, the CO2 machine didn't work so they rescheduled me. What would you do?