poo issues

DD is 20 months and has had poo trouble for the past maybe 6 months. Been to the doctor several times and just been told to keep giving lactulose, twice a day.

At first it was fine and was making a difference but DD is obviously hating having to take it all the time now and absolutely refuses it. Have tried using syringe, spoon, cup, putting it in her water/milk but she just will not have it. Even if I hold her down and try and hold her mouth shut (gently of course) until she swallows it, she just holds it in her mouth then spits it out.
Took her back to Doc today and she's given me some stuff that is in powder form (can't remember the name of it but it starts with M) and I mix it in with her water.... but it has a lemon/lime taste to it and she HATES it. She needs to have one sachet a day but she probably had all of about 3 small sips today then tried to tip it out and screwed up her face.

I really don't know what else I can do. She hasn't done a decent poo in weeks. She had been doing really well and pooing on the potty every two days but now she holds on to them cause they hurt so much when they do come out now she is so constipated with not having the lactulose so just does wee skids in her nappy.

I feel dreadful for her, she has been miserable so her tummy must be hurting but the Doc just doesn't seem to worried.

Anyone else experienced anything like this?

Yea Maxalon, that's the one. I just couldn't be bothered getting up off my bum to check the name of it haha but yea, that's it.
She has toddler formula for drinking but normal milk in her foods etc.
She eats loads of kiwifruit, she can't get enough of the stuff. It's about the only thing I can get into her during the day. She's gone off her food. She will eat a full meal at dinner time tho but wont eat sandwiches, yoghurt, any of her normal lunchtime things, other than fruit.

My bubs loves prunes, maybe see if she will try those. Just wondering if you should go and see somebody else if you are concerned about it.

Prune juice and prunes are good. Kiwi crush, kiwi fruit...Lots of fruit in general but steer clear of bananas.

lactulose can make your tummy really hurt!

oh also what is her water intake like? The more the better as it helps to keep the bowel moist and therefore bowel movements also.

Oh i just had another thought, does she have a bottle?? Because brown sugar also does the trick (although i'm not sure how keen you would be giving her brown sugar) or even a little on porridge?

has she tried coloxyl & senna?
its a softener so doesnt really help with the size or frequency but does make it softer so it um doesnt rip a new one

DS1 went through a short phase of constipation at about 1 year. We gave him baby cereal mixed with prune juice every morning. If we skipped a morning, back to rabbit pellets.
Then all of a sudden about 2 or 3 months later, the issue had just gone. We didn't change anything (other than stopping the cereal & prune juice when we realised things were getting too loose instead)

So glad to find this thread. DS has had constipation issues since starting solids. At 8 months we even put him back on puree pumpkin, pear and peach diet and that still didn't really help. Unfortunately he has had an anal fissure so I think he holds them in which makes it worse. My poor boy has never had a banana as I am reluctant to give him anything that will bung him up. Hardest thing ever watching him try to squeeze one out
Will be trying kiwi crush as he loves the taste of kiwifruit. I was going to take him back to the GP but don't want to just be told to give him more Lactulose.