Potty training regression

[bobby's bear]

Hi all, looking for a bit of advice / tips from those with bigger kids......

My 2.5 yo was potty trained about a month ago, she did brilliantly and got it almost straight away and from about day 3 we had very few accidents and had about 2 weeks with none at all.

Last week we went on holiday and as the week went on we had more and more accidents, I think due to a combination of us being a bit lax about reminding, drinking more fluids, and the other children we were with were all in nappies. Now we are having at least 4 accidents a day, she also stopped asking to go during the week and would only go if we took her and demanded a wee.

Back home things are no better and after 5 changes yesterday I am not sure what the best thing to do at this stage is. I'm not keen to go back to nappies as I know she can do it.

So I am not sure how to play it? Ideas I had were back to square one with house arrest for a few days and chocolate rewards, a bit of light disappointment (we obviously avoided this 1st time around), giving her the responsibility so only going when she asks so she is 'in charge' of it.

Any tips much appreciated, I am finding it very frustrating!