SANTA CLARA -- Linebacker Ahmad Brooks is "trying to sweat out" a severe cold that kept him out of the 49ers' practice Wednesday.
Brooks participated Thursday's walk-through practice and is expected to return for the afternoon session in advance of Sunday's NFC Championship game at Seattle.
Speaking with reporters in the locker room, Brooks wore the same head sock he had to combat the 5-degree weather in Green Bay on Jan. 5.
"He's feeling better today. Just a little bug," 49ers coach Jim Harbaugh said.
Brooks produced 4 ½ sacks through the 49ers' playoff wins at Green Bay and Carolina. He led the 49ers with 8 ½ sacks this season.
Brooks' task Sunday will be to keep the Seahawks' Russell Wilson from escaping the pocket.
"He's good at buying time for his receivers," Brooks said. "We've got to keep him in the pocket as much as possible."
Brooks said Wilson is a "different style runner" than the Panthers' Cam Newton, who had 10 carries for 54 yards in Sunday's divisional game that the 49ers won 23-10.
"Cam Newton is about 6-foot-5, so you see where he's going. He's not as mobile as Russell," Brooks said.