USADA investigating Nate Diaz for self medicating at UFC 202 press conference

Ultimate Fighting Championship (UFC) lightweight-turned-welterweight attraction Nate Diaz was pretty busted up after his five-round war with Conor McGregor at the UFC 202 pay-per-view (PPV) event, which took place last Sat. night (Aug. 20, 2016) inside T-Mobile Arena in Las Vegas, Nevada.

Watch the replay here.

And since getting punched in the face hurts -- a lot -- the Stockton slugger was looking to reduce the pain (as well as the inflammation) during the UFC 202 press conference (watch it), puffing away at his vape pen that was jam packed with cannibidiol oil, also known as CBD.

"It'll make your life a better place," according to Diaz.

That said, United States Anti-Doping Agency (USADA), charged with keeping the drug-testing peace 'round these parts, will make your life a worse place (just ask this guy). Not surprisingly, reports that Diaz was self-medicating during his "in-competition" window did not fall on deaf ears.

"I can confirm that USADA is aware of the situation and is currently gathering information in order to determine the next appropriate steps," USADA spokesperson Ryan Madden told MMA Fighting in a statement. CBD belongs to the cannabis family, banned in-competition by the World Anti-Doping Agency (WADA).

But let's not start handing out suspensions just yet.

USADA is "gathering info" on Nate Diaz's press conference vape pen. As long as post-fight test is clean, I don't expect this to blow up.

— Brett Okamoto (@bokamotoESPN) August 23, 2016

Diaz (19-11) has not failed a pre- or post-fight drug test during his 12-year career in mixed martial arts (MMA).

Yet.