Otolaryngology or ENT (ear, nose, and throat) is the branch of medicine and surgery that specializes in the diagnosis and treatment of ear, nose, throat, and head and neck disorders. The subspecialties of an ear, nose, and throat doctor include head and neck, facial plastics, Otology, Nuero-Otology, Rhinology/Sinus, Laryngology, and Pediatrics. Platelet rich plasma has also been used in this field with proven success.