Agree with both posts.
Grab her off the eggs. I tend to tuck my hand, palm up under her belly and lift up taking care to watch her feet and the eggs. Set her down on floor, she'll probably lay down and flatten out like she's still on the eggs. She's still in a trance. She'll pop out of it and wreak havoc out the door and lay a smelly present for you. This is the time she'll head for a dust bath, ravage food and drink lots of water.
Use this time to check her nest. She's probably made a mess. If so gently lift out eggs and set aside. Refresh with new bedding and replace the eggs. I would suggest doing this before she gets ready to lock down on the eggs. After 18 days I don't pull a broody from the eggs, if she gets off of them on her own that's okay, but I don't force them to.
Best of luck with your hatch.