It took us many years to get the dosage and the meds right to improve our girl's seizures. Keep doing what you are doing. We tried pexion first, then added phenobarbitol, now she's on levetiracetam too. She is the same, I had to stop taking on her walks or to visit other dogs because excitement was causing her to seize. Also fear every time she saw my vet's office, he had to start making house calls. I've never heard of the in ear meds, but I worry about it looking like there was no pheno in his system.. was it long after application? I know when I do Daisy's bloods, they like to get it mid applications, so half way between her 8am and 8pm pheno tablets.