Jewell revealed he was considering his future at the Suffolk club after Saturday's 2-1 defeat at Hull left struggling Town winless in 10 games and still second-bottom in the table.
But the Liverpudlian received the complete backing of owner Marcus Evans and his players, among many others, when weighing up his future and has opted to stay, although he acknowledges results must improve and quickly.
"I had another restless night on Saturday and then spoke to Marcus Evans on Sunday afternoon about the situation," Jewell told the club's official website. "We had a good chat and yet again he gave me his 100% backing. I couldn't really ask for more support from the owner to be honest.
"I've had text messages of support from the players as well, from other managers and from players who have played for this club - even some I have let go! That has meant a lot to me. I've spoken to the coaching staff and we're now preparing for what is obviously a very important game on Tuesday against Derby.
"I said a few things after Saturday's game - perhaps in the heat of the moment but it's clear that results on the pitch have not been good enough. I can only continue to do my best for this football club to turn things around. That has to happen very quickly though."