A method of discharging aerated bubbly water using a shower apparatus (F1,F2,F3,1,51), the shower apparatus comprising a water supply unit (21,31,41,11), a throttle unit (22,32,42,12,51), an aeration unit (23,33,43,13,53) and a nozzle unit (24,34,44,14,54); the method comprising: supplying water by the water supply unit (21,31,41,11) to the throttle unit (22,32,42,12,52) installed downstream of the water supply unit, the throttle unit making a cross sectional area of a flow channel smaller than the water supply unit, it thereby ejecting passing water downstream; the water then passing to the aeration unit (23,33,43,13,53) installed downstream of the throttle unit (22,32,42,12,52), the aeration unit being provided with an opening (231,331,431,53a) to produce the aerated bubbly water by aerating the water ejected through the throttle unit (22,32,42,12); and the water then passing to the nozzle unit (24,34,44,14,54) installed downstream of the aeration unit (23,33,43,13,53), the nozzle unit being provided with a plurality of nozzle holes (243,343,443,54p) formed along an ejection direction of the water ejected through the throttle unit (22,32,42,12,52), the nozzle holes thus discharging the aerated bubbly water, wherein the throttle unit (22,32,42,12,52) is made up of a plurality of throttle channels (221,321,421,52a) arranged side by side; and each of a plurality of virtual water ejection straight lines obtained by extending the ejection direction of the water ejected from each of the plurality of throttle channels (221,321,421,52a) reaches a location where the nozzle holes (241,341,441,54p) are formed without interfering with inner walls of the aeration unit (23,33,43,13,53) and the nozzle unit (24,34,44,14,54), and such that the water is ejected downstream from the throttle channels to the aeration unit and the nozzle unit with the virtual water ejection straight lines extending to a most distant nozzle hole avoiding interference with side walls (23b, 23c, 23d, 23e, and 23f) of the aeration unit and side walls (24b, 24c, 24d, and 24e) of the nozzle unit; characterised in that: a cross section of the aeration (23,33,43,13,53) and nozzle (24,34,44,14,54) units perpendicular to an ejection direction of water ejected from the respective plurality of throttle channels (221,321,421,52a) is formed in a flat shape whose longest sides run along the direction in which the plurality of throttle channels (221,321,421,52a) are arranged side by side, the cross section of the aeration unit (23,33,43,13,53) and nozzle unit (24,34,44,14,54) being formed to be narrow in the vertical direction which is the ejection direction of the aerated bubbly water through the nozzle holes (241,341,441,54p) and wide in the direction in which the plurality of throttle channels (221,321,421,52a) are arranged side by side. supplying water by the water supply unit (21,31,41,11) to the throttle unit (22,32,42,12,52) installed downstream of the water supply unit, the throttle unit making a cross sectional area of a flow channel smaller than the water supply unit, it thereby ejecting passing water downstream; the water then passing to the aeration unit (23,33,43,13,53) installed downstream of the throttle unit (22,32,42,12,52), the aeration unit being provided with an opening (231,331,431,53a) to produce the aerated bubbly water by aerating the water ejected through the throttle unit (22,32,42,12); and the water then passing to the nozzle unit (24,34,44,14,54) installed downstream of the aeration unit (23,33,43,13,53), the nozzle unit being provided with a plurality of nozzle holes (243,343,443,54p) formed along an ejection direction of the water ejected through the throttle unit (22,32,42,12,52), the nozzle holes thus discharging the aerated bubbly water, wherein the throttle unit (22,32,42,12,52) is made up of a plurality of throttle channels (221,321,421,52a) arranged side by side; and each of a plurality of virtual water ejection straight lines obtained by extending the ejection direction of the water ejected from each of the plurality of throttle channels (221,321,421,52a) reaches a location where the nozzle holes (241,341,441,54p) are formed without interfering with inner walls of the aeration unit (23,33,43,13,53) and the nozzle unit (24,34,44,14,54), and such that the water is ejected downstream from the throttle channels to the aeration unit and the nozzle unit with the virtual water ejection straight lines extending to a most distant nozzle hole avoiding interference with side walls (23b, 23c, 23d, 23e, and 23f) of the aeration unit and side walls (24b, 24c, 24d, and 24e) of the nozzle unit; characterised in that: a cross section of the aeration (23,33,43,13,53) and nozzle (24,34,44,14,54) units perpendicular to an ejection direction of water ejected from the respective plurality of throttle channels (221,321,421,52a) is formed in a flat shape whose longest sides run along the direction in which the plurality of throttle channels (221,321,421,52a) are arranged side by side, the cross section of the aeration unit (23,33,43,13,53) and nozzle unit (24,34,44,14,54) being formed to be narrow in the vertical direction which is the ejection direction of the aerated bubbly water through the nozzle holes (241,341,441,54p) and wide in the direction in which the plurality of throttle channels (221,321,421,52a) are arranged side by side.