Yesterday one little chick had some poop dried on her vent, so I rinsed her well, all looked good, and back she went into the brooder. But this morning her "pooper" is swelled and very enlarged, and when I rinsed off the poop that covered her vent, it was quickly obvious that there is a good amount of poop stuck inside as well. I soaked her off and on for almost an hour in warm running water, carefully used a Q-tip and toothpick to remove as much as a could. I've had her a clean box so I can see if she poops any out, and so far, nothing, and she does not look much better. What more can I do?