My opinion is that this helps if you want to loose water under your skin. Sweating is a sign that you loose weight, but it is a "correct" sign when you sweat naturally - from exercises, or cardio.
If your goal is only to increase sweating, this doeasn't mean you burn more fat.
People have internal and external body temperature. You loose weight when you increase your internal body temperature - with workout for examplle.
Increasing external body temperature leads to more sweting, because your body want to regulate your normal temperature, but this doesn't cause fat burning.
I hope I explaine this simple and meaningful.