With Stephen Bywater making a return from injury, Derby boss Nigel Clough is happy to let Fielding re-join his parent club.
"Frank will go back. We are carrying two number one goalkeepers because both want to play and both want to be number one," said Clough.
"If Frank stays, Stephen's not going to be happy being number two and vice versa.
"We are not in a position as a club where we can keep two number one's happy. Stephen's fully fit now. He has had enough training time and he will come back in.
"Frank will go back to Blackburn better for the experience he has had here.
"He has impressed us."