Got a dog with huge bat like ears.
He's always been fairly scratchy at them. More so than our last dog. Its not constant at all, in fact he can go a few days where I don't see any scratching but then he will spend five minutes with his foot practically down his ear.
They don't look sore apart from once he scratched so much he made his ear bleed. I got some drops which said they soothed itchy ears, killed mites, sorted out wax and he seemed better after this. He seems worse again. I've managed to put drops down one ear but he hates it and I can't get near him for the other ear.
My mum reckons her dogs groomer pulls the hair out the inside of her dogs ears. She reckons I need to do this. 
He is due boosters next month so I will mention it to the vet.