There have been a few lows at Ipswich over recent years but this plumbed the depths.
After going behind after just 44 seconds to the first of two by 18-year-old Ross Barkley, the Blues flickered briefly intolike before rolling over.
Higginbotham cleared off the line from a Michail Antonio header as Town`s defence in disarray again.
Chris O`Grady shot wide then headed over the bar as he continues to find space in the box.
Cresswell squandered three free kicks in a row from similar positions going for the far corner but hitting high and wide each time.
Josh Carson had Town`s only shot on target in the first half but taken comfortably by Chris Kirkland.
Ipswich looked devoid of ideas and with just one striker up front, were playing as if they are the away side, and the noise made by Wednesday fans compared the silent Town supporters, made it feel that way.
The on-loan Everton striker grabbed his second on 58 minutes when he controlled a Michail Antonio pass on the edge of the 18-yard box with his right and finished with his left.
Antonio made it three after rounding Stephen Henderson nine minutes from time.
Gutless Ipswich were booed off wth fans chanting: ‘You’re not fit the wear the shirt’.
We ahve dropped to four adrift of Bristol City in the Championship while the Owls moved up a place.