Hi, i wish you guys get me out of my hiding sooner
anyhow this looks very much not good and very painfully familiar.....
You need to stop self treating and run to the vet who knows frogs asap! I mean it, run! Call the vet and tell him it is an emergency! Every medication has to be used in certain way and the worst you can do is to jump from meds to meds, especially it is the case of antibiotics. Correct dosage is very important too. If you dont have access to frog vet, but have access to antibiotics, pm me.
Meanwhile....
How are you keeping them? Before and now? Please answer to "trouble in the enclosure question" here.