AKN Type 2by Dr. UmarMay 12, 2020August 30, 2020 Published on May 12, 2020. Last Updated on August 30, 2020. Painful back of the head bumps diagnosed and terminated with The Bumpinator. AKN 6 views FacebookTwitterLinkedinPin ItWhatsApp You may also like AKN Type 1 AKN 1 views AKN Laser AKN, Laser Treatment Patients 3 views