Leave it be. Its natural, and its just bits of soil usually snag the shell but the leafs will open by themselves and it'll come off. Now if its stretching and grows a few CM then tackle it. But as for now, leave her be, you risk burning her if she's not ready to come out as I don't know how deep you planted her so she might still be showing she isn't ready to come out yet and its still in development.
2-3cm if it hasn't come off then lightly grab the shell and pull it apart, (do not pull it up) like you being breaking a nut.
Good luck