I gave my goat 5 shots of antibiotics in the last week to break this cough of his and it didn't fix it.. he still has a nasty cough. I bought animal penicillin from my local farm store, should I give this a try? if so how many CC should I give him? how often? where do I inject it? let me know what you all recommend.. he is still eating but this nasty cough wont go away. he has free access to goat mineral as well. let me know thanks everyone. nathan p.s. he is about 7 months old.