Zac Efron “airs his penis out”?

LOS ANGELES - JUL 20: Zac Efron arrives at the Charlie St. Cloud Premiere at Village Theater on July20, 2010 in Westwood, CA .... Photo via NewscomZac Efron has spoken about the nasty rash he picked up on holiday.

The Charlie St. Cloud actor had an unfortunate brush with a bush – a poison oak bush.

“I went back-packing over Memorial Day weekend and I just got the worst poison oak,” Zac said.

“It’s, like, everywhere. Everywhere. I can’t even begin to show you, ’cause you’ll get so grossed out. I look like a zombie from Dawn Of The Dead.”

According to the magazine’s reporter, Andrew Goldman, the 22-year-old actor revealed the true extent of his condition when they both went to the toilet, and Efron then left his pants unzipped for a little while, reportedly saying: ‘I’m just airing it out. It just itches too much.’

If you’re easily disgusted look away now.

Describing Zac’s rash, the magazine wrote: “Half of his back has been taken over by a crust resembling swollen cornflakes.”