Help chicken pooping blood!

[Camry08]

she was pooping blood two weeks ago so I treated her with Corid for 7 days per this site’s instructions (I made a post about this previously). She was good for a week poops a little watery but now it’s straight back to blood! Do I start treatment again. She doesn’t look tiny but she weighs absolutely NOTHING compared to her sister I only noticed how light she was a couple weeks ago.

 

[ShrekDawg]

I think I would start treatment again but others might have better advice.