Will I Scar from my Retin A Treatment?

Am using extra strong .25 Retin A on sunspots. They have all disappeared with minimal peeling, except for one. This is more of a eraser sized dark spot, which originated from a blemish. It has been in the middle of my cheek for years. During treatment it got a hard layer, which I peeled. It immediately bled and I'm concerned it will now scar. Is this likely?

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