The Padres re-signed Camarena on a minor-league contract Monday.
Camarena cleared waivers and was outrighted to Triple-A El Paso on Friday.
Camarena was optioned to Triple-A El Paso on Thursday.
Camarena (0-1) took the loss Wednesday against the Dodgers after allowing four runs (two earned) on five hits and a walk while managing just one strikeout over two innings.
The Padres recalled Camarena from Triple-A El Paso on Tuesday, Jeff Sanders of The San Diego Union-Tribune reports.
Camarena was optioned to Triple-A El Paso on Friday.
Camarena pitched two innings against Washington on Thursday, allowing two runs on two hits while striking out two. He also hit a grand slam in his lone plate appearance.
Camarena was recalled from Triple-A El Paso on Thursday.
The Padres optioned Camarena to Triple-A El Paso on Sunday, MLB.com reports.
Camarena pitched 2.2 innings in relief against the Reds on Saturday, allowing three runs on four hits and one walk while striking out three. He did not factor in the decision.