<prompt> All are true regarding laryngomalacia except:Poor prognosisMost common congenital anomalyStridorGets relieved in prone position  <response>: a Poor prognosisRef. Current Diagnosis Treatment Otolaryngology, Lalwani, 3rd ed., 481; Scott Brown, 8th ed., Vol 2; 333The prognosis of laryngomalacia is very good; stridor disappears on its own by two years of age. Rest all are true 