hi i have the same problem now with one of my lurchers, no smell no discharge but the ear is squelching and she seems a little irritated by it, was wondering how much tcp and how much water do you use?
ihad same prob with one of my lurchers got earmite drops for him from wilkinsons pet section cheap easy to use and effective i would also use the eye and ear wipes to clean ear before each dosing of drops cleared my dogs ear in 7days