Welbeck, who has recovered from a broken ankle, scored his first Hornets goal in the 2-1 Carabao Cup win over Swansea on Tuesday night.
He has played the full 90 minutes in both of Watford's cup matches this term but made just two substitute appearances in the Premier League.
“I said two weeks ago we have a plan for him," said Sanchez Flores. “We are taking care with him and we are very passionate about him coming back to the team.
“I just want the fans to see the good version of Danny, not the kind of Danny who goes to the pitch with some pain. I want Danny 100 per cent so we can enjoy this Danny."