I'm after some advice about going dairy free for my 18month old ds.
He's always had 'baby poo' I.e. It never firmed up once he was on solids. I stopped breastfeeding about a month ago and his eczema and bowels have got worse 

Went to GP who was not very helpful, just said to try cutting out various foods , seeing if his symptoms improve then reintroduce them to see if they return.
We tried egg, but it's not that, so trying 'dairy' next.
He likes yoghurt (plain and flavoured)
Milk
Mayonnaise
Ice cream
Please can you help me with some good alternatives?
TIA