One of our 2 week old chicks is severely constipated. It's backside is swollen badly and is slightly bleeding (I think). I've isolated it from the rest, who are super healthy and bouncing around like mad and have been applying triple antibiotic to it. I've tried to loosen the stool with a warm damp cloth and it's helped a bit but this fella is much smaller than the rest and not very active. Does anyone have any advice?