Ear Mites stuck under wax ball???

[bigbuckle]

My poor cat was treated for ear mites and fleas back in December for ear mites and fleas with Revolution, the liquid you put in the back of their heads. Since then all has been fine until a couple weeks ago he had a big chunk of dark wax come out of his ear. Since then his ear has been constantly dirty. I have been giving him ear drops every couple of days to help keep any other wax in there to soften and come out, but I'm wondering if he had some ear mite eggs stuck under that chunk that may have now hatched? Does anybody know if that's possible?

I called my vet and they didn't know either, but it's only happening in the one ear that the wax came out of. His other ear is fine and none of his 3 brothers are having any signs either!