My grandpa's lamancha has had this cough every since we got her, she also has some clear snot sometimes. I though perhaps it was allergies, but see that lungworms can cause it as well. As far as I know it's fairly consistent, her two kids now have the same cough, the other goats do not have this. How can we tell if it's an allergy or worms? He has not wormed with ivermectin, has wormed with safeguard.