[Rachael x]

I have cleaned my dogs ears with a ear cleaning product which I got from the pet shop because my vet said her ears were waxy.
A few hours later I have noticed there is dark stuff in one of her ears which wasn't there before, Is this the wax working its self out?
It looks like wax just darker then what I would expect to see in a human.
Does it work its way out of should I try and get it out now I can see it? Thanks