Can anyone give me some advice please.

[slightlycrumpled]

I have been gettind duck eggs from a friend for about two months and have noticed they had been giving me an indegestion type of feeling.

Stupidly today I ate half a one with breakfast and within fifteen minutes was feeling really bad, my stomach was swollen and really painful, and I think my fingers seemed slightly swollen (although I could have imagined that in my paranoia) an hour later and I was violently sick. My stomach is still really sore, although better than it was.

Does anyone know if it is possible to be allergic to duck eggs but not hen eggs? Is it something I should investigate further or just leave as it is easy to avoid duck eggs

Hi, here is a report which may explain it, sorry it is a cut and paste but what is explains is it is very likely you can have a duck or goose egg allergy but be fine with hens. Its all in the proteins I think:

BACKGROUND: Eggs are among the foods most frequently causing allergy. Hen eggs are the most important. Those of other birds are of lesser significance. OBJECTIVE: We report an unusual case of food allergy after consumption of eggs from duck and goose in an adult patient without hen egg allergy. METHODS: Skin prick tests were performed with fresh white and yolk from eggs of duck and goose and egg white, egg yolk, ovalbumin, and ovomucoid from hen egg. Specific serum IgE was measured to hen egg proteins. SDS-PAGE and IgE immunoblotting were carried out with egg white extracts from hen, duck, and goose. RESULTS: Skin tests were positive to egg whites from duck and goose. The skin tests and specific serum IgE were negative to hen egg proteins. Immunoblotting demonstrated the presence of specific IgE to a proteic band of molecular weight around 45 kd. CONCLUSIONS: We report a patient with an IgE-mediated allergy to egg white from duck and goose without hen egg allergy. Ovalbumin seems to be the responsible protein. The antigenic determinant of this protein seems to be specific of order Anseriforme and it is not present in the ovalbumin of order Galliforme.

Thank you BBF.
at least I know it is possible, feeling much better today.