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Doctor insights on: What Does A Rash From A Shellfish Allergy Look Like

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What does a rash from a shellfish allergy look like?

What does a rash from a shellfish allergy look like?

Hives, usually: Most rash from shellfish allergy looks like hives (urticaria) and/or swelling of the eyes, lips and hands (angioedema). A few people with atopic eczema who are shellfish sensitive might get worsening of their eczema. People who process shellfish (like fishermen or cannery workers) might get an eczema-like rash on their hands and skin where they contact the shellfish. ...Read more

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Dr. Cynthia Lu
68 doctors shared insights

Shellfish Allergy (Definition)

A shellfish allergy is an exaggerated immune response due to exposure to shellfish protein. The reaction can present with typical symptoms of hives, respiratory symptoms (cough, wheeze, shortness of breath), GI symptoms (abdominal pain, vomiting), swelling, loss of consciousness, and can be fatal. Symptoms typically present within minutes to a couple hours ...Read more


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Which drugs can help my shellfish allergy?

Which drugs can help my shellfish allergy?

Epinephrine: For severe shellfish allergy, only injectable Epinephrine for reactions is a reliable treatment. Some people with very mild allergies can use antihistamines alone, but everyone should have Epinephrine available. Unfortunately, there are no drugs that will prevent or resolve a food allergy so you can eat the food without risk, although this is an active area of research. ...Read more

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What symptoms indicate a severe shellfish allergy?

What symptoms indicate a severe shellfish allergy?

Multiple symptoms: After exposure to or ingestion of shellfish, you would experience any combination of the following symptoms: shortness of breath, cough, wheeze, chest tightness, vomiting, diarrhea, hives, swelling of the lips/tongue, throat discomfort, etc. ...Read more

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Will calamari trigger a shellfish allergy?

Will calamari trigger a shellfish allergy?

Yes: About 10-15% of people who are shellfish allergic (shrimp, lobster, etc) are also clinically sensitive to mollusks (clams, squid(calamari), octopus). Ask your allergist before introducing mollusks to your diet. ...Read more

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Will imitation crab trigger a shellfish allergy?

Will imitation crab trigger a shellfish allergy?

No: Imitation crab meat is made from fillets of Alaska pollock. As long as you don't have a history of fish allergy you shouldn't have a problem. You should be careful however, because some manufacturers that produce these products also manufacture shellfish products in the same facility which could cause cross-contamination. ...Read more

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If I have a shellfish allergy, can I eat imitation crab?

If I have a shellfish allergy, can I eat imitation crab?

Yes.: That is, as long as you are not allergic to fish as well. Imitation crab is made from pollack and kamaboko, types of white fish. There are two kinds of shellfish - crustaceans (shrimp, lobster, crab) & mollusks (clams, mussels, oysters, calamari). Are you allergic to both kinds? If not, there may be some shellfish in your future. See an allergist for help. ...Read more

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If I have a shellfish allergy, why can I not use iodine?

If I have a shellfish allergy, why can I not use iodine?

Radiocontrast media : People with shellfish allergy are sometimes told they should avoid iodine and radioconstrast media (rcm). This is not true and is a myth. Iodine does not cause allergy. While people who have any allergies may have a slightly higher risk to a reaction to rcm, it is still low. Shellfish allergy does not increase the risk for a reaction. ...Read more

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If I have a shellfish allergy what types of seafood can I eat?

If I have a shellfish allergy what types of seafood can I eat?

Shell less fish: Examples of fish or seafood that you could eat: tuna, salmon, herring, all other types of fish with scales. Avoid seafood that has shells or hard cases: oyster, clam, lobster, shrimp. ...Read more

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Does immunotherapy work for a shellfish allergy?

Does immunotherapy work for a shellfish allergy?

NO: I am not awwre of any imunothreapy for shellfish allergy.I recomend consulting an allergist to see what options there are ...Read more

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Whats relatinship between iodine and shellfish allergy?

Same thing: Fish and shellfish have a tendency to concentrate iodine in their flesh. If you are allergic to iodine, often you will have a cross reactivity when you consume fish or shellfish. My wife, in fact, has this problem, and while she can eat fish from southern waters, she reacts poorly when she eats halibut caught in alaska. Particularly from the largest/oldest fish. ...Read more

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I got my shellfish allergy from my mom. Should I worry about the other things she's allergic to passing down to me?

I got my shellfish allergy from my mom. Should I worry about the other things she's allergic to passing down to me?

May be: there is genetic/familial tendency but not true Mendelian genetic rule, which means you might have allergies in general as any of your parents, but not necessarily that you will inherent the same pattern, be careful though, keep an Epipen (epinephrine) handy, also an antihistaminic ...Read more

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Is it possible that my shellfish allergy is on and off? There are times when i eat mussels that I have g.I disturbances but there are times im okay.

Is it possible that my shellfish allergy is on and off? There are times when i eat mussels that I have g.I disturbances but there are times im okay.

Shellfish: This is not an allergy. A shellfish allergy is consistent and repeated exposure can lead to progressive and life threatening reactions. You need to consult an allergist to have your definite answer, you need to be tested. ...Read more

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I have a shellfish allergy. But recently I've noticed when I eat desserts or fruits I have similar symptoms as the shellfish allergy . What is it?

I have a shellfish allergy. But recently I've noticed  when I eat  desserts or fruits I have similar symptoms as the shellfish allergy .  What is it?

Depends: What are the symptoms of shellfish allergy. It does not sound like full-blown anaphylaxis with the deserts (or you are remarkably cavalier). Oral itching or even swelling can occur with nuts or fruits contained in the deserts. If these are the only symptoms, could be oral allergy syndrome (or pollen-food syndrome). Allergens usually labile so as not to produce "full-blown" food allergy. ...Read more

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Whats a type 1 shellfish allergy?

Whats a type 1 shellfish allergy?

IgE mediated: Allergic reactions that are type i are mediated by the allergic antibody ige. That means they can be diagnosed using a skin or blood test for ige. They are immediate reactions with symptoms occurring within minutes to hours after exposure. Symptoms can be hives, swelling, anaphylaxis, asthma, etc. ...Read more

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How can a shellfish allergy start?

How can a shellfish allergy start?

Anytime: Shellfish allergy can start anytime. Typically this is seen in adults but can be seen in children. Unfortunatley there is no good way to predict who will develop this and when. ...Read more

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How long does pain from shellfish allergy last?

How long does pain from shellfish allergy last?

Hours: Not sure one would expect pain from a shellfish allergy reaction. In general, an allergic reaction from a food would last a couple of hours to maybe a day or so, if left untreated. If the reaction is treated them one should expect a quicker resloution. ...Read more

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Do any tests indicate a severe shellfish allergy?

Positive or Negative: A positive skin or blood test for allergy to shellfish is enough evidence to diagnose an allergy if you have a convincing history of allergic reaction to shellfish. If the history is inconclusive, a blinded food challenge can be performed to help confirm the diagnosis. If you are diagnosed with shellfish allergy, you are at risk of a life threatening reaction. There is no test for severity. ...Read more

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Dr. John Chiu
2,573 doctors shared insights

Allergies (Definition)

Allergies occur when your immune system is triggered by envirionmental factors it should ignore--for example, pollen in the air, or dander on a cat or dog--and creates cells to fight against them. An allergic reaction typically causes itching, congestion, or drainage, and ...Read more


Dr. John Chiu
2,618 doctors shared insights

Skin Rash (Definition)

A skin rash is a symptom in which a person has changes on part or all of his skin, such as color changes, bumps, blisters, oozing, peeling, ...Read more