I was told to do nothing to my IPL burn / blister. Is this right?

I had IPL this afternoon. Have had it twice before over a 3 year period so know what to expect. The machine burnt me this time. The practitioner admitted as much & apologised. She said it would blister. When I asked should I apply anything, she said NO. Nothing. "Just don't touch it." All my research is telling me that any blistering from IPL should be treated by keeping it moist & / or wet. I'm distressed as I'd like to be diligent in this healing. Will go back to them in the morning. Thanks