She ate a salad from a grocery store. Items included: tofu, watercress, tomato, Asian dressing (oh the specificity), an egg, potato salad, macaroni salad, pasta salad, cauliflower, broccoli, and Thousand Island dressing.
The only adverse reaction she's reported prior: orange juice, which results in digestive upset, and sesame oil (but that's rich and potent so...), which is upset stomach if too much.
She hasn't changed any soaps, detergents, foods, etc. at all. I was brainstorming and asking if she experienced any bites, etc. The only thing she said is that the hives appear after her shower occasionally and she occasionally wakes with them too. She doesn't have them where sweat collects, etc.
when do they decide it is crucial to know the cause?