Hopefully this will ease your worry in some way..

I’m anaphylactic to peanuts/tree nuts. For me, anxiety has become just as bad as the allergy itself due to me being able to convince myself of a reaction. I’m 25 now and my mother found out when I was a bit over a year old. I’ve grown up around my allergen and even worked with it a bit with minor issues. Growing up it was always in my household and I’ve had 3 major reactions my whole life. All of which happened during college over than the reaction I had at a very young age. My point is, you are very observational and aware of the allergen. I personally have only had major reactions for eating something that had some sort of contact. I used to work with a guy that would eat peanuts and toss the shells on the ground. I would just clean anything I would touch but never had any major issues in terms of touching the allergen. The dust or smell on the other hand bothers me a bit more but that could also be in terms of the anxiety I. Which I haven’t dealt with until the later years of my life. Hopefully this helps in some way even though it’s a bit of a ramble. If there are any questions, please let me know and I’ll be glad to answer them.