Is continuing the prescribed treatment for acne, which leads to skin peeling, considered unlawful (haram) and an alteration of God's creation, given that the patient was unaware of this peeling effect before starting the treatment, that it occurs incidentally in specific areas of the face, and that the treatment restores the skin to its natural state and removes acne and hyperpigmentation? And is the hadith (prophetic tradition) that prohibits peeling authentic?

The hadith (definition) "cursed is the peeler and the peeled" is weak, but many scholars have adopted the prohibition of facial peeling due to it constituting an alteration of Allah's creation and potential harm. As for improving the face and removing melasma or acne scars for treatment, there is no harm in it, and it is not considered peeling. Therefore, using medications to remove acne and its scars or other diseases for treatment is permissible in Islamic law, even if it leads to skin peeling, as long as there is no harm or impurity. Accordingly, there is no objection to the medication mentioned in the question.