Ah gotcha.
However only 2 days are not enough to conclude that it wont work in all areas eventually, perhaps is working on the deeper or more extensive areas first.
Because ironically i bought this audio just to help me with those exact areas that get a bit oily or with a few little pimples here and there on my chin when im on my days or if the weather is too humid.
And it works perfectly, but the rest of my face is normal, cero acne, so you see? With me it goes directly where you need it. But because in my face those are the only parts i need help
Id say just give it like a week or even 10 days and see, while also drink more water.