Posted 3/8/2013 9:32 AM (GMT -7)
Derillion, welcome to the forum.
Sheri had a good suggestion.
Shrimp are treated right on the boat with sulfites to keep their color and stop spoilage. Sometimes this is not adequately washed off. Some people have a true allergic reaction to sulfites.
If you are not having a reaction to wine, beer, brown sugar, corn starch or other sulfited foods, this is unlikely to be your problem. You might want to consider going to an allergist for a skin test.