As with most other food allergies, the symptoms can be mild, eg tingling in the mouth, a rash or a feeling of sickness, or can be very severe leading to an anaphylactic shock in the extreme.

There is no cure for a nut allergy and the best way to eliminate any possible symptoms is to avoid nuts altogether. Of course, there are nuts or the possibility of traces of nuts in many processed foods. Avoidance means becoming a label watcher.