Hah

- she sounds like a total sweetie! I think you're smart to call the vet or tech and ask about the irritation...maybe they'll advise you to wait a few days, let the ears calm and normalize, and then re-start the cleansing. The vet didn't treat w/ the ear ointment for only a week, right? Usually, it's about 14days or so.
Some ear ointments are a wider spectrum and treat yeast and bacterial infections - is Mometamax one of these? Bc she could have both types of infections going on. Be aware that Gentamycin ointments can cause some hearing problems, esp. in yorkies. There are several ear ointments on the market, so I'd be tempted to ask the vet for a different one, if this one seems very irritating

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The vet may also recommend something add'l to help w/ soothing the ear and w/ inflammation.