11mo tested positive for allergies to peanuts (v v high) and most treetops (lower, varied).. Not pine nuts. This evening she has had a reaction to something at a friends house - sudden bright red flushed face, crying, v v hot head, the odd small hive. The only thing I can possibly think it might be is she was touching some acorns which we moved from her a while before, we missed one which she might have licked and she was sucking her fingers anyway. Any experiences? Google suggests acorns are tree nuts but also that acorn allergy is unlikely... Have given Piriton.