Megan FoxIn the latest issue of Allure, Megan Fox opens up about her struggle with Obsessive Compulsive Disorder.

"This is a sickness, I have an illness -- this is not OK anymore," she says.

The 'Transformers' star talks about how she won't use toilets without covers -- "I'm never doing that again. Every time someone uses a bathroom and they flush, all the bacteria is shot into the air." -- and how she feels about restaurant silverware -- "Putting my mouth where a million other mouths have been, just knowing all the bacteria that you carry in your mouth? Ucch!"

Fox also discusses being alone and cooking for herself.