Guinea fowl with respiratory issues!

[GuineaMania]

Hi all! My guinea hen, Nellie, has been having issues for a while. Her breathing is wheezy, and every once and a while she shakes her head and sneezes. If she gets worked up (gets picked up, runs, etc.) then her breathing gets worse to the point where she may sit down and puff up a little to get some more air in, and might close her eyes. I've been treating her naturally recently and she definitely showed improvement, but now she is regressing a bit. She does eat, but is super lightweight and skinny... Right now I separate her from the flock with her buddy Tommy for half the day to treat her. I'll try to get a video soon.

My question is, what do I give her??

@Wyorp Rock @Eggcessive