Help! Lactose Intolerance

[bigbubbabelly]

I have tried, Yoghurt the other day. A full fat plain Yoghurt (couldn't find one without live cultures in it) and she ate a teaspoon and half and came out in blotches all over here face and upper body. It faded pretty quickly eg less than 30-40 mins.
Then I tried her on pumpkin and sweet potato just yesterday (she is 7 months old and 1 day and has been eating food since 4 months) and decided to add a bit of grated cheese (about 5 to six pieces of grated bits) and she came out splotchey with swollen eyelids and slightly grey/pink under her eyes. I know I am a twit for giving it her the cheese, but I thought it was once off. :
Her Poos haven't really changed either since I tried introducing Yoghurt and Cheese!
However I gave her baby custard and she gobbled that up with no problems
I am very lactose intolerant completely since 25 years old, my husband isn't.
I am still b/fing!
Help, what do I do? How do I get dairy into diet?