I saw my bantam rooster gagging, i thought he needed water so i went to him and he was covered in puke. It was a liquidy, foamy bubbly clear puke, I took him inside right away to treat him with tetracycline hydrochloride because i think it might be a respiratory infection but please help me. Everytime I gave him the medicine in a little spoon he drank it but then threw up more foam, what can this be? Please help me. Thank you in advance.