So sorry to hear that Honey's so poorly.

I can offer no suggestions except that she sounds bad enough to either get the vet to her or put up with the vomiting and take her in. Sorry.
Re: dust and hair in the house - in my experience, dogs sneeze with dust, and don't get furballs like cats, even dogs that clean themselves up like cats. So I would doubt it's environmental - sorry again.

for an improvement for poor Honey
