The black marks left behind by frequent beard pulling mostly belong to pigmentation, generally can be eliminated, commonly used treatments include topical drug therapy, oral drug therapy, laser therapy, chemical peeling treatment. 1. Topical drug therapy: you can use some drugs to inhibit the proliferation of melanocytes, such as niacinamide, tranexamic acid, etc.; you can also use some drugs to inhibit the activity of tyrosinase, such as hydroquinone cream, etc.; to promote epidermal peeling of drugs, such as vinpocetine ointment, adapalene gel and so on. 2. Oral drug treatment: you can take some oral antioxidants, such as vitamin C, vitamin E, etc., to reduce the formation of melanin. 3. Laser treatment: Generally, the photothermal effect produced by laser can be utilized to decompose and promote the removal of the deposited melanin and lighten the pigmentation. 4. Chemical exfoliation therapy: the exfoliant can be applied to the surface layer of the skin to promote the exfoliation of the skin in the area of hyperpigmentation, so as to make the skin undergo stratum corneum separation and keratin coagulation, and the epidermis and dermis are necrotic to varying degrees, exfoliated and replaced by new epidermis to improve the skin’s condition. It is recommended that patients go to the dermatology department of regular hospitals, follow the doctor’s instructions for reasonable treatment, when using medication, strictly under the guidance of the doctor, do not blindly self-medication, to avoid adverse reactions.