I recently had the BLT twice. The first treatment the tech used the whole tube of ointment on my face and ears then I waited 1 1/2 hours and went under the blue light for 16 minutes. It was the longest 16 minutes of my life! Intense burning and sensation of needles prickling the skin where the worst cancers were. The end result was great as it revealed so many spots that I was not aware of but they did peal.
I went back 6 weeks later for the 2nd treatment and had a different tech. She barely applied the cream to the obvious spots that had come back but did not treat my whole face. I did not have the intense burning nor sensation of needle pricks as before but I guessed it was because I had the treatment earlier. The only pealing I had was on my forehead because the light was tilted and that area was the closest to the light. Within 1 week, I had numerous cancers visible all over my face so I made an appointment for a follow up for 2 weeks after the procedure. They did admit that they needed to give more training on the procedure but I’m not sure if that was said to just appease me at the time. I was given 3 options- do the BLT again, freeze the obvious spots or chemo cream. Since it’s the beginning of summer, I chose freezing and will do the chemo cream this fall.
I have said all this to say that based on my experience there is obviously a right way & a wrong for the treatment to be done!