New to dealing with allergies... some help please.

Hi all- I posted a few weeks back about a rash my daughter got after eating/being around cucumbers. At the time we thought it was just a contact rash, probably from the cucumbers since that was really the only thing that was different.

The rash got worse and that night I ended up taking her to urgent care as we were on vacation. Anyway, turned out she had hives. She never had them before (she's 2). They were HUGE. She has had some contact allergy type problems with hummus (we think the tahini since she can eat garbanzo beans with no problems) She is a great eater, and has never really seemed to have any other problems.

This past weekend she broke out again and they have been going on all week, go away with benedryl and advil. She doesn't seemed too bothered by them, she will point them out and say she wants a bath and medicine and that's about it. They start to go away shortly after she takes the medicine.

I'm starting to think it might be from nuts and/or peanut butter. we are a big nut family and my son and husband eat all kinds frequently. She's eaten p.b before, not a ton, but I've never noticed anything wrong. I've stopped giving her any nuts, p.b. and cucumbers and pineapple (both different items we had both weekends) but not sure where to go from here. since she is still having them, I'm thinking the hives need to be out of her system before we can really monitor what's going on.

so what do I do now? any major concerns I should be aware of? Unfortunately, we recently moved and don't have a family doc yet. A whole other problem as no one is taking new patients and we don't vax.

sorry for the huge post, and thanks for any advice!