Mixed anaerobic otitis externa and pseudomonas treatmentshttps://www.vetsurgeon.org/f/clinical-questions/13306/mixed-anaerobic-otitis-externa-and-pseudomonas-treatments Managed to culture Pseudomonas + mixed anaerobic infxn from chronic otitis externa. The Pseudomonas is currently sensitive to all the antibiotics on the idexx panel including fl quinolones and gentamicin. What can I use for the mixed anaerobic infxnen-USTelligent Community 10Re: Mixed anaerobic otitis externa and pseudomonas treatmentshttps://www.vetsurgeon.org/thread/76336?ContentTypeID=1Wed, 31 Oct 2012 10:22:11 GMT146601cc-3922-4be7-9974-7e1d4e45a66b:5b426157-bf8c-4318-adbd-012a3e894abbMartin Atkinson<p>[quote user=&quot;Matt Valentine&quot;]Can you use metronidazole injectable topically?[/quote] I have, just drawn it with a syringe from an IV bag and squirted into the ear, dose is a bit hit and miss but seemed to work. Also adv using some ear drops with tris-EDTA for the pseudo if you&#39;re not already doing so.&nbsp;</p><div style="clear:both;"></div>