Usually, acne marks will disappear on their own within 2-3 years. Pimple marks are simple pigmentation change-like marks that are flat against the skin, usually secondary to acne or pimples. They are often divided into black hyperpigmented acne marks and red, persistent erythematous acne marks. If the patient does not undergo complementary treatment, it will take 2-3 years for the skin to heal through its own metabolic system. Its because the pigment decomposition is slow when the own skin is metabolizing, so the acne marks will gradually fade and not disappear quickly. If patients want it to fade quickly, they can do a good job of sun protection in daily life, and moderate intake of vitamin C and vitamin E, which can play the role of antioxidants and can assist black acne marks to fade. And red acne marks can be removed with the aid of hot towel hot compresses.