Our cow has had a cough off and on for over a month. She started to lose some weight. We de wormed her and have gave her 2 doses of penicillin. She has been eating and drink normal her poop and pee look normal doesnt smell weird. Has been walking fine. She is staring to look better but still has her cough. Does anyone know if there is something else we should give her or if she can have more penicillin I know the bottle says limit to two doses. And the vets we have around where we live all do small animal so aren't much help.