want to write to this thread again, as we've found a very good solution and i'd like to share. it's 'rice water', basically, when you cook rice, when the water comes to boil for a little while, we take that water our and let bub drink it like water. just a small cup every day, and it's working wonders! her poopoo has gotten a lot softer, she's not scared anymore, and gets to go willingly almost everyday.
it's actually better than the hoi nai chai as you cannot drink that that much. this 'rice water' i think it's the most basic thing, just like us eating rice every day, so it's ok to have it daily, and it's really working for us.
hubby's grandmother gave it to him when he was a baby, MIL started with my baby and it's really working, hope this helps!