The black marks left behind after acne disappears belong to melanin deposition, which can be removed by laser treatment, fruit acid peeling and medication.
1. Laser treatment: Through special light beams acting on the dermis layer of the skin, the pigment particles can be broken down and then discharged out of the body with the metabolism. This will help to remove the hyperpigmentation.
2. Fruit Acid Peeling: The use of high concentrations of fruit acid or salicylic acid can remove the old stratum corneum and promote the production of elastic fibers, which helps to eliminate black marks.
3. Medication: black marks left by acne can be treated with medication, but it should be used consistently, for example, you can use hydroquinone cream, tretinoin, azelaic acid, etc., which has a certain effect of lightening pigmentation.
Appearance of the above situation, it is recommended to go to a regular hospital, the above drugs and operations need to be carried out under the guidance of a doctor.