Loose stools, dull comb

[colospgs]

Those seem to be the only symptoms in my 3YO BO. I first noticed the dull comb around the beginning of the year, but chalked it up to winter weather. The loose stools I noticed a couple of months ago. Since whatever it is hasn't cleared up, I started giving probiotics in the water, and a de-wormer tablet 2 days ago.
Pictures: Comb used to be a healthy red, but now it's dull.
Affected hen's stools are on the right. Like soft-serve as opposed to the other healthy stools next to it.
Any advice? Or just wait a while longer and see how the probiotics and dewormer work.

 

[Wyorp Rock]

Those seem to be the only symptoms in my 3YO BO. I first noticed the dull comb around the beginning of the year, but chalked it up to winter weather. The loose stools I noticed a couple of months ago. Since whatever it is hasn't cleared up, I started giving probiotics in the water, and a de-wormer tablet 2 days ago.
Pictures: Comb used to be a healthy red, but now it's dull.
Affected hen's stools are on the right. Like soft-serve as opposed to the other healthy stools next to it.
Any advice? Or just wait a while longer and see how the probiotics and dewormer work.

What dewormer are you using?

I'd see deworming and the probiotics make a difference.

You don't mention if she's laying eggs or not, I would assume not since she has a paler comb and with her age, molted in the fall/early winter and hasn't come back into lay yet.