Quique Sanchez Flores was pleased with Watford's response after losing 8-0 to Manchester City on Saturday.
The Hornets put the demoralising defeat behind them by winning 2-1 over Swansea City in the Carabao Cup third-round on Tuesday.
Sanchez Flores said: "The important thing was to win after the weekend.
"We felt the support from the fans so I say 'thank you' to them. It was a bad experience for all of us.
"I told the players we don't have reasons to be sad. We have reasons to react. We need to show everyone we can do much better.
"It's in the past and now we have another important game against Wolves in a few days."