What are the symptoms of seafood allergy? Often people who eat seafood develop a specific kind of poisoning that manifests itself in allergy-like symptoms such as itching, redness and edema of the skin. However, these people may just be sensitive to certain fish. If a subcutaneous test is done, or when there is no allergic reaction to seafood under monitoring, then another type of fish or seafood can still be consumed without having to reject all seafood.

If you consume unfresh or rotting green skinned red meat fish, it can cause poisoning; salted fish, such as raw materials are not fresh or pickled imperfectly, containing histamine, can also cause poisoning after eating. Allergic people who eat a small amount of histamine may also have symptoms of poisoning.

The onset of poisoning is fast, often 0.5~1 hour after eating, sometimes as long as 5 minutes, and as long as 4 hours. The onset of symptoms is mild, quick recovery, and occasionally death. Often manifested as blushing, dizziness, headache, heartbeat, panic, chest tightness, shortness of breath, face, lip swelling, numbness of the mouth, tongue and limbs, nausea, vomiting, itching of the skin and so on.