Almost 2 year old waking for hours during the night - help

[squishy]

Am on holiday with Dad and DSM cos DH has b*ggered off on a jolly - DD hadn't been well for a while so waking during night but now has continued to do so. She does this at home from time to time and DH just gives her bottles until she goes back to sleep. Problem is that it takes ages for her to go back to sleep and I think she needs to stop having them as they're interfering with her day time eating etc

Main problem is that she's waking for 2-3hrs during the night, frustrated and angry and fighting sleep, just wanting bottles, hugs and even when she gets them still shouting. Dad saying I should just ignore as I need the sleep and I'm happy that there's nothing else wrong with her. Tempted but it goes against the instinct - any tips please?

realise not as informative as I could have been - she's been sleeping through the night since about 5mo apart from teething issues when she wakes, has bottles and back to sleep but often the waking period had still been a couple of hours, just wondering the impact that DH has had on this - he's a night owl so often up at that time and just gives her more and more milk when I am now beginning to think that more refined techniques for comforting her and getting her back to sleep (if applicable) would be worth it, while I've got a week off work, would like to crack it but am seriously sleep deprived and feeling the strain.... TIA

squishy - my ds sometimes wakes for a couple of hours in the night at the moment but think this is to do with how much he is sleeping in the day (not much!) - anyway he has been sleeping really well in the nights for a few months til this recent phase but before that he was a little monkey always wanting milk at all hours - in the end we managed to put a stop to it by just giving him water and ignoring the pleas for milk - i was more concerned about his tooth decay from milk at night than anything, but as it turned out this really stopped him waking up or at least disturbing us.. we just left a non spill cup of water where he could reach it and once he got the message that no milk was coming, we all had a better nights sleep..
have a lot of sympathy anyway, hope it gets better soon

Thanks fairylights, managed to get her off the bottle (until last 2 nights when DH caved in - had been off for 2 weeks before) but she's STILL waking in the middle of the night for 2-3 hours, calm for some of the time, playing etc but then screaming and shouting at the beginning/end....am distraught! DH deals with much of it as he doesn't go to bed until late, but I think he's not being proactive, not sure what to suggest though!

If we ignore DD, she will continue for hours. If we go in there, seems she will continue for longer - she's always been a brilliant sleeper so feels like our parenting department in that area is lacking!