The causes of neck acne are: first, wearing clothes collar is too high, long-term friction, local skin damage follicle bacterial infection, or the usual cleaning is not in place, excessive secretion of oil in the neck, blocking the pores will also grow acne. Second, the quality of sleep is not good, long-term stay up late, endocrine disorders will also lead to acne on the neck. Third, some women in order to face and neck skin color unity, will apply some BB cream on the neck, cleaning is not complete resulting in cosmetics residue on the skin, in the long run the pores of the neck clogged to form acne. Fourth, taking some hormonal drugs disrupts the body’s endocrine system, causing endocrine disruption and acne on the neck. The first thing you need to do is to take a look at the actual website.