Question: how can you tell if you are allergic to shellfish?
Answer: Hives, itching or eczema (atopic dermatitis)
Swelling of the lips, face, tongue and throat, or other parts of the body.
Wheezing, nasal congestion or trouble breathing.
Abdominal pain, diarrhea, nausea or vomiting.
Dizziness, lightheadedness or fainting.