There is acne on the neck, which may be folliculitis or acne. Acne usually grows in areas where sebaceous glands secrete more vigorously, and sebaceous glands are also distributed on the skin of the neck, so it also grows. The acne on the neck is generally seen in people after puberty, mostly because they often stay up late, work and rest irregularly, often eat high oil and salt food, sweets, dairy food, and have high mental stress. Therefore, we should pay attention to the regular work and rest, do not stay up late, do not drink, and pay attention to light diet. If we can achieve the above points, acne can generally disappear on its own. If it is serious, you can also use adapalene gel, nafloxacin ointment and other drugs for anti-inflammatory treatment under the guidance of a doctor.