hello eviesmummy we had exactly the same thing with our daughter. i used to get in the bath with her. it took a while and i did get cold sometimes. to start off, we used to just give her a good wash down with a sponge - i.e., take her top off and wash/dry, then put it back on and do the same with her pj bottoms. i used to let her see me prepare for a bath and how much i enjoyed the bath etc. she was free to come and go out the b/room if she chose. bearing in mind we live in a flat so this part may not be suitable. washed her hairt over the sink which she didn't like but it needed doing.
then when she was used to that, she has a little stool in the bathroom to help her reach the sink and she used to sit on that with some of her toys that could gpo in the bathroom and not be spoilt if they got wet. after that it was undressing me then her and getting in the bath together. there were a few screams and more than a few tears but i just kept talking to her calmly and kept washing her at the same time - it wasn't easy but i soon learnt lol. she will have her arms round your neck and you may have to prise her gently away slightly so you can wash her tum but just do it as quick as poss.rinse her off then get out - all the while praising her for being a good girl. this stage lasted a few weeks until i got a bit fed up . it was at the stage where she wouldn't even put her foot in the water.
next was getting her to sit down on my lap facing me and then facing away. all the time holding onto her to reassure her.
use lots of her toys to distract her well, ones that can go in the bath anyway
i then bit the bullet (basically cos i'd already had a bath that day - not cos i'm a smelly minny ) and undressed her and put her in the bath. she did nearly throttle me but i kept hold of her and washed her still praising her all the time. then got her out and gave her a big cuddle. we had a few slips where she slipped slightly in the bath but i didn't make a big deal of it and kept going.
we have finally got to the stage where she will stand in the bath, wash her bits herself and sit down to wash off then stand up again.
we also found that using bubble bath helped, i told my dd that i couldn't use her bubblebath cos it made my skin itch but that it was ok for dd to use.
it might be easier also if she has already done poo in her nappy during the day then give her a bath. if not, keep the baths short til she starts to enjoy them again.
i knew we were coming to the proverbial light at the end of the tunnel when she hung her head slightly because she didn't want to get out of the bath
keep going sweetheart, you will both get used to it again hth