20 Year Old - Never had acne, what is this? (photos)

I've had perfect skin my entire life, but up to last week I've mysteriously gotten two big crater acne spots that did not heal. They have scarred I'm afraid. I've kept good care of my skin but the scabs keep falling off and not helping. They've definitely indented and it's very noticeable as I don't have any other marks on my skin. What is recommended I do?

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