Have you got ibuprofen and calpol in? Alternating them every 3 hours and a warm compress on the sore ear(s) will help a bit.
OOH docs propbably wouldn't do much that would alleviate it tonight, anyway - if that assuages the guilt a little [sympathetic ].
Ds2 suffers badly with his ears but he's much younger (21 mo) and I never realise what the cause of the crying and clinginess is until the drum goes and I see the gunk. It's a horrid thing for them to suffer from. Much sympathy for you and her.
Yorkiegirl, my son has just had his second set of grommets in, he's 6, so we've been through this many many times too. You have my sympathy.
One thing we found worked really well, through desperation more than anything, was a doze of piriton syrup. I think because it tends to dry up any mucus behind the nose, going into the ears etc and it makes them drowsy too.