Placebo effect is not a real treatment of course. But to understand the real effectiveness of laser therapy they use 2 groups. Placebo group and laser group. If there is a significant difference between them (i mean laser therapy found more effective), then you can't say lasers only shows placebo effect! That means they are more effective than placebo..
How can you say i'm making these things up even though i added the proven studies and defending these things? This is totally wrong..