Acne scabs become black and raised, there may be two different lesions, blackened may be post-inflammatory hyperpigmentation, raised may be the formation of epidermal cysts, can be directed to the cause of the disease, to take medication, surgical treatment and so on.
1. Post-inflammatory hyperpigmentation: acne scabs turn black may be caused by post-inflammatory hyperpigmentation, patients can be used under the guidance of a doctor to inhibit the transport of melanosomes, such as niacinamide, etc., or topical inhibition of tyrosinase activity of drugs, such as arbutin, hydroquinone cream, etc. Deoxy arbutin, hydroquinone cream.
2. Epidermal cysts: acne scabs raised may also be caused by epidermal cysts. Patients need to go to the hospital in time for cyst removal surgery to remove the cyst.
The appearance of acne scabs become black bump, should go to the regular hospital in time to clarify the diagnosis, under the guidance of the doctor, symptomatic treatment.