Give it a little spritz of vetricyn and leave her be. It should be fine as long as no one else picks at it.
Do you guys know what causes this?Spray with vetricyn and set it in a tea cup--the yolk needs to absorb. If there is no leakage the chick should be ok. Leave the chick in the cup in the incubator for up to a day. Give it a drop of baby vitamins without iron too.