What is the ruling on using a cream that treats acne and removes its traces (scars/pits) by peeling the skin without changing its original color? And is treating scars considered changing Allah's creation, or does it fall under medical treatment?

It is not permissible to use things that peel the skin, as this involves altering Allah's creation, unless it is for treating acne or the effects of a disease. In such cases, there is no harm in it, as long as there is no damage or impurity, based on Aisha (may Allah be pleased with her) who said regarding peeling the face: "If it is something she was born with, it is not permissible for her to remove it. But if it is something that occurred later, there is no harm in peeling it."