Kourtney Kardashian says her sister Khloe is recovering from her staph infection.

Khloe Kardashian

Khloe Kardashian

The reality TV star is being treated with intravenous antibiotics after picking up the infection while at the hospital bedside of her estranged husband Lamar Odom and is slowly getting better.

Kourtney told E! News: "She's good. She's OK. She's not feeling well, but she's OK."

Khloe's illness reportedly sent her mother Kris Jenner "into a panic and left her freaked out" as Kris's father Robert Houghton died of a staph infection that he picked up after a car crash in 1975.

Khloe's sister Kim Kardashian West has been ordered not to visit her younger sibling because she is eight months pregnant and doctors have deemed it too dangerous.

Meanwhile, Khloe blamed her recent Twitter rant on "antibiotics and painkillers".

The 'Keeping Up With The Kardashians' star hit out at critics on social media who said she should chose between her current boyfriend James Harden and estranged husband Lamar Odom but later claimed the medication she is currently taking for her infection had influenced her rant.

She tweeted: "antibiotics + painkillers + tweeting does not equal anything good.(sic)"