So my dogs vet said he had ear mites...so she treated him with a one time treatment then he goes back for 100% coverage at the end of month to get another treatment..but now I've noticed he has brown flakey dry skin with either old blood or yeast in his ears. there's not a ton but I can see it if I shine a flash light in his ear. He had some inflammation so they gave him a pill to bring it down. It works and he only scratches and shakes once I look and touch his ear. What im wondering is...could he now have an infection or is it the old stuff coming up? Anyone have this experience or should I just phone vet again??