Eczema Appearing! Help Me To Try Every Possible Prevention Method!

[turtleschell]

DD is 7mo and I have seen a tiny patch of eczema appear on her arm, and on her back behind her shoulder. Nooooo.
Her skin otherwise looks and feels great, not dry.

Being a chronic eczema sufferer myself, I think i've got all the treatment ideas covered, but is there any way of preventing further outbreak that I haven't thought of?
Here's what I have already been doing since she was born:

Bathe with lukewarm water, no soap, no shampoo.
Wash all her clothes/sheets with homemade laundry powder (soap flakes, borax and washing soda)
Breastfeed exclusively
No wool/fleece/flannelette clothes/sheets.

I am going to stop using the heater so much, as this dries the skin.


Any more ideas?

Also, any ideas about my diet affecting her skin? I have very little dairy usually, though I have been drinking Yakult lately (this is apparently Good for eczema though?) and I did drink one glass of milk this week.. but surely ONE glass of milk isn't enough to trigger? WDYT?
Otherwise, my diet is quite healthy, full of veg and not a lot of red meat.

EDIT: I'm trying to avoid resorting to any creams, and also want to keep any form of moisturising as a last resort, as I believe it makes it worse in the long run.

Please any ideas would be great, I really don't want DD to have to suffer her whole life like I am