I have a hen approximately 2-3 yrs old currently molting & just found her laying on ground with peck marks ( bleeding) on neck. Cleaned & treated neck but noticed has a pocket of some type of liquid under her feathers & skin of her chest/lower throat. Any advice or link I can use to help?? Also it’s been in excess of 100 degrees the last 3-5 days. Plenty of shade & water available