Black coal cyst. Cyst had been present for many years. Very dry on top and tender with juicy cyst contents underneath. The red inflammation you see on the skin is likely because the hard impacted keratin was completely clogging the DPOW and new cyst contents forming deeper had no way to exit around firm black plug. Cyst pop. Cyst big squeeze. Hard tender cyst. Dermatology procedure. Cyst Full excision and closure. Medical procedure. MrPopZit.