Advice on reducing sachets after disimpaction for a five-year-old

[Bluedoor5]

I’ve just finished a disimpaction with my son aged 5 we are back down to 1 sachet a day now but his poos are still very runny. I am unsure whether to stick to one sachet a day for awhile or go down to half a sachet. I’m scared of him getting blocked up again. Has anyone any advice ? Will it take a few days at 1 sachet for the poo to harden up again? Thanks in advance 🙏

Was 1sachet a day the usual dose before? If so I’d try to get back to normal. Possibly some overflow going on at the moment.
I know how awful this is to go through with a DC.