If you have a dark neck that doesn’t wash off like dirt, you need to analyze the specific cause of the dark neck and treat it. For congenital hyperpigmentation, no treatment is needed; for long-term sun exposure, sun protection is needed; for bad habits, lifestyle adjustment is needed; for acanthosis nigricans, weight control is needed, and medication (e.g., vitamin A, sulfur coal tar ointment, etc.) is needed under a doctor’s supervision.
1. Dark skin caused by congenital hyperpigmentation does not require special treatment.
2. If the darkening of the neck is caused by prolonged exposure to the sun, it is necessary to take proper sun protection measures (e.g. avoiding direct sunlight, applying sunscreen, etc.).
3. If the darkening is caused by bad lifestyle habits or improper cleansing, it should be improved by adjusting lifestyle habits and proper cleansing.
4. If it is caused by acanthosis nigricans, first of all, weight should be controlled, and it can be treated systematically with internal and external medication under the guidance of doctor, such as supplementing vitamin A, together with topical medication, such as sulfur coal tar ointment.
Neck black can be caused by many reasons, such as self-adjustment of lifestyle habits, good sun protection measures and still no improvement, need to consult a dermatologist and follow the doctor’s instructions for treatment.