"He's feeling a little better, but we'll most likely stay away from him again," Scioscia said.
Downs, who has a 0.42 ERA in 24 appearances this season, hasn't pitched since Sunday against the Rockies. He tossed one inning in the game, giving up one run and a season-high three hits.
The lefty hasn't had any tests, however, and is planning on going through a pregame routine and assessing his status from there.
Catcher Chris Iannetta, who has been out since May 8 recovering from right wrist surgery, is going to be re-evaluated in a few days before the team decides if he's ready to play again.
Iannetta injured his wrist after getting hit by a pitch on May 2 against the Twins, the night he caught Jered Weaver's no-hitter, and caught only three games after that before having surgery.
"He feels a lot better, but once he can go out there and throw without any discomfort at all, he'll go out and play," Scioscia said. "So hopefully not too far away."