Hun, you can also just wait until the next shed. That eyecap won't cause any problems whatsoever and will just come off next time. Eyecaps cause problems when they buildup over time, and no one takes care of it. Bacteria can buildup underneath those layers and cause infection. Just one eyecap won't do a thing.
Waiting would be the safest thing to do. A lukewarm moist washcloth draped over her head for a bit would help too. Just no tweezers and NO tape.