What are the causes of acne under the mouth?

Acne under the mouth, this situation may be that the skin of the site shows an inflammatory reaction, this inflammation may be the original closed acne or open acne to stimulate the formation of certain conditional pathogen infection, so the final formation of acne, this acne is what we normally call acne vulgaris. It is also possible that the site shows soft tissue infection or sebaceous cyst, thus leading to local inflammation performance. Of course, there are other possibilities, such as the site showed viral infection and the formation of inflammation performance, the most common may be herpes simplex virus infection and the formation of herpes simplex, generally mainly manifested as local erythema on the basis of blisters, and this blister cluster, patients will be accompanied by obvious pain symptoms. It is also possible that the site showed molluscum virus infection and the formation of infectious molluscum, etc.