Acne cyst under the ear? (Photo)

I think it was a bit painful a few days ago, but i have never noticed it until a few days ago. But now, it is entirely not painful, and it was definitely not there one week ago. Is this just a form of a cyst acne? Will it leave a scar? it is definitely not a keloid because i have no history of keloid, and that area was not injured

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