Need to give my bird an antibiotic since I can not get rid of her bumblefoot: here was my other thread: https://www.backyardchickens.com/t/1155527/i-thought-bumblefoot-but-not-sure-now Someone suggested penicillin pro-pen-g. Is that the correct one to use? My tractor supply has these : http://www.tractorsupply.com/tsc/search/penicillin I think I want this one: http://www.tractorsupply.com/tsc/product/pen-aqueous-500-ml-durvet-drug?cm_vc=-10005 Can someone confirm this is what I should use and the rate I should use it at per lb of bird? But they also have this: http://www.tractorsupply.com/tsc/product/combi-pen-48-100-ml-bimeda-antibacteria?cm_vc=-10005 But I do not think this is the one I want. Can some confirm? I only have a Tractor Supply near me, so what they have are my available options. Thank you in advance!