I have read through several past threads. Some related issues seem to be a canker sore. But, my Delaware hen's issue seems somewhat worse. I noticed a couple days ago that her beak was curved extra long. When looking closer I saw the abscess/swelling (see images). It seems to have deformed her bottom beak to the side (almost like scissor beak). I don't know if the long curved top beak is a result of or caused the abscess. But, I imagine it's difficult to eat and potentially painful. If it's just a canker sore, I know there are OTC meds available. But, it seems worse than that. As far as the curved beak is concerned, I know I can trim it back. The abscess is my main concern.