Shellfish is among the most common food allergens. It is also one of the most dangerous, sending more food-allergic people to hospital emergency rooms than any other.
A shellfish allergy is different from an allergy to fish. Those who are allergic to shellfish do not necessarily have to avoid fish, and vice versa.
Shellfish Allergy Symptoms
Vomiting
Stomach cramps
Indigestion
Diarrhea
Hives all over the body
Shortness of breath
Wheezing
Repetitive cough
Tight, hoarse throat; trouble swallowing
Swelling of the tongue and/or lips
Weak pulse
Pale or blue coloring of the skin
Dizziness or confusion
Shellfish Allergy Management and Treatment
Avoid foods that trigger symptoms.
Control some symptoms with antihistamines and corticosteroids.
Reverse severe reactions, particularly anaphylaxis, with prescription epinephrine (adrenaline).