I went for a LED theraphy (which she only did for 10 minutes) and she told me that if I really wanted it to work I needed to do a deep clean. She asked me if I have ever done one and I said I have not. I should have asked her what exactly a deep clean was but I trusted the professional.
She spent the next two hours "extracting" all my dead skin. I paid 120 pounds extra, I spent one hour criying. A week later I still have lots of scabs on my face. She knew I was getting married in a few days!