Hello and hope you are doing well.
The best way to avoid allergic reactions is by avoiding them. Sometimes the allergies can precipitate anaphylactic shock in which the swelling can be so severe that it impairs the ability to breathe. So, having an epi pen is mandatory. Please discuss this with your doctor am sure he will provide further assistance.
Hope this helped and do keep us posted.
Stop eating it. It will get worse every time until you end up hospitalized.