Brandon Brooks was back at practice on Wednesday.
The right guard was inactive on Sunday at Buffalo, and spent that day and night in an area hospital after a bout of nausea.
"He did a good job," head coach Bill O'Brien said of Brooks on Wednesday. "He was out there. He looked fine."
O'Brien said he thinks Brooks was suffering from a "24-hour bug".
Oday Aboushi started in Brooks' place against the Bills.
Brooks and the Texans practiced outside at the Houston Methodist Training Center. He's started 10 games in 2015.
The Houston Texans roster in photos.