How long has he been on meds now? I just hate to keep throwing new stuff at him because you don't want to over-medicate.. but on the flip if he's going downhill I don't want to say wait and week.. yanno?
Furan 2 or triple sulfa maybe? IDK Kanaplex usually gets it. Kanaplex usually is the catch all/top one. IT works when the other two don't sometimes.. Maybe someone else has experience treating well with something else. I've always used Kanaplex. I know Triple Sulfa has three antibiotics and Furan 2 has two. Also Maracyn Plus has two pretty good hitters. Sakura?