DENVER -- Injured Arizona Cardinals quarterback Carson Palmer will spend Sunday night in Denver to see a doctor for a treatment that has finally worked to improve the axillary nerve contusion in his right throwing shoulder, which he suffered in Week 1.

The team returned to Arizona following Sunday’s 41-20 loss to the Broncos.

Palmer said the treatment that worked stimulates the muscles. Palmer improved enough in the last 48 hours to throw 20 short tosses before Sunday’s game but, unlike last week when he tried throwing, the nerve hasn’t been reagitated yet.

“It felt good and I’ll continue to ramp that up each day this upcoming week,” Palmer said.

Palmer will be back in Arizona by Monday’s meetings, he added. Arizona doesn’t return to the field until Wednesday, giving Palmer a couple more days to continue testing his arm. He sounded optimistic about practicing Wednesday but Palmer was confident he was going to return after the bye.

The nerve flared up and benched him last week.

“I’ll continue to do all the treatment and do everything in my power to get it ready to go,” Palmer said.

With backup Drew Stanton leaving Sunday’s game with a concussion, Arizona only has one healthy quarterback on the roster. It’s put the spotlight back on Palmer’s return.

Even though Arizona was hosted by Denver’s Peyton Manning, who famously returned from a nerve injury in his neck, Palmer said the two quarterbacks haven’t talked. Last week, Manning even offered his advice. Palmer is opting to take the same route of treatment that former NFL safety John Lynch took after suffering from two major nerve injuries during his career.

“I think we may have found something,” Palmer said. “And I’m going to continue to do that.”