Coughing Goats

Hi there. I’m just looking for some guidance dealing with a respiratory issue in my goats. I am new to owning goats and made the mistake of bringing home a buck that has a cough. Now my two does are also coughing. There is no fever and the cough has gotten worse over the last few weeks. One doe seems to be moving slower but everyone has normal appetite especially the new buck.
Has anyone encountered something like this? I would so appreciate some advice from goat owners who have been at this longer than me.
My management style is rotational grazing the goats through woods and pastures. They have access to lots of diverse forage including trees and shrubs. We use herbal dewormer but will consider something stronger if that’s the only option to save the does.
Most people I talk to where I live give vaccines, antibiotics and chemical dewormers, so it’s hard to find out other options.
Hopefully someone can share some insight here on permies. Thanks so much!!

It sounds as if that cough is contagious.

I would recommend some antibiotics are called for.

I also believe that a trip to the vet might be called for.

You might get some ideas from this thread:

https://permies.com/t/68081/Ways-Treat-Infections-Antibiotics

Until you can do this you might try fermenting their feed.

These threads are not about goats though the method would be the dame:

https://permies.com/t/163346/Fermenting-Chicken-Feed

https://permies.com/t/88445/Fermenting-Feed-Scale

Anne, thank you for this response. I will check out these threads. I think I may have to contact the vet as well. I appreciate your help.