Suehirocho Hirai ENT Clinic is an otolaryngology specialty clinic located in Kanda-ogawamachi, Chiyoda-ku, conveniently situated just a 2-minute walk from Suehirocho Station on the Tokyo Metro Ginza Line. A key feature of the clinic is its commitment to "visual diagnosis." The clinic uses electronic fiberoscopy and rigid laryngoscopy to display images on monitors, allowing patients to visually confirm their own conditions. A filing system also enables comparison with past examination results. In terms of equipment, the clinic has introduced a cone-beam CT (sitting position CT) that significantly reduces radiation exposure compared to conventional helical CT, and uses it for diagnosing middle ear diseases, paranasal sinus diseases, and patulous eustachian tube. For eustachian tube disorders, the clinic director, who has experience from specialized outpatient care during his time as a salaried doctor, performs eustachian tube function tests using the T.T.A.G method, providing highly specialized medical care. For allergic rhinitis, the clinic offers CO2 laser surgery and sublingual immunotherapy, with the director being a certified specialist of the Japanese Society of Allergology. An online appointment system has been introduced to reduce waiting times, and the clinic accepts credit cards, electronic payments, and is barrier-free accessible.