I've had this dark ring on my upper lip for 5+ years now it doesn't go away please help : r 30PlusSkinCare Oral Melanotic Macule MEDizzy An oral melanotic macule is a harmless dark spot found on the lip, most often the lower lip, or inside the mouth, either on the gums, inside the cheek, or on the roof of the mouth. An oral melanotic Melanotic spots of the mucous membranes Altmeyers Encyclopedia Department Dermatology