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Doctor insights on: Seafood Allergy Rash

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What causes crab allergies? Shrimp allergy?

What causes crab allergies? Shrimp allergy?

Muscle protein: The allergen in shrimp and crab is probably a common allergen called tropomyosin which is a muscle protein. ...Read more

Dr. John Chiu
2,630 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


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Allergic reaction to corned beef?

Allergic reaction to corned beef?

Beef allergy: Are you allergic to beef or is it simply something in the aging process of the corned beef that you reacted to? Your allergist can test you. ...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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Looking for nut allergies symptoms, eg, cashew allergy?

Looking for nut allergies symptoms, eg, cashew allergy?

Varies: Allergic reactions varies with individuals.Some can consume cashews, while to others they are toxic.Reactions can be mild or severe. Mild reactions include nausea , vomiting, diarrhea. Skin rash and itching on the skin.The eyes , roof of mouth and throat may itch.Severe reactions include difficulty breathing, swelling to face and throat.The most dangerous is anaphylaxis.This can be fatal ...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

Dr. Al Hegab Dr. Hegab
2 doctors agreed:
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Are allergy vaccines helpful in allergic dermatitis?

Dr. Al Hegab Dr. Hegab
2 doctors agreed:
Are allergy vaccines helpful in allergic dermatitis?

Probably: Not as strongly effective as with airways allergies, need to be prescribed and monitored by an expert, an allergist, in selected patients, after controlling the environment and trial of other modalities, and control of symptoms, good luck ...Read more

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Real lobster allergy?

Real lobster allergy?

Yes: Lobster is related to shrimp and crab. Each of these is a common cause of life threatening allergy. If you are having symptoms after eating any of these you should be evaluated by a board certified allergist. Do no eat any shellfish until you have been cleared. ...Read more

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The scabies cause allergic reaction?

The scabies cause allergic reaction?

Yes: In fact the intense itching is mostly from an allergic reaction to the mite droppings. ...Read more

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Do hives from food allergies always mean anaphylactic reaction?

Do hives from food allergies always mean anaphylactic reaction?

Not always: Hives as a symptom along the continuium of allergic reactions. The concern is that the next time they are exposed to this allergen they may react more severely (anaphylaxis). This is definitely something you want to see your child's doctor about. ...Read more

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Is poison oak allergy genetic?

Is poison oak allergy genetic?

Poison oak: Some people appear to be immune, others become immune. However, you can gain or lose immunity, so to assume you can't get it if you never have before is foolish. People change as they age. I would never assume that i was immune at any time no matter what my past experience was. ...Read more

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What is the best allergy medication for seasonal allergies like pollen, dust, ragweed, hay fever, dogs, cats, hamsters etc?

What is the best allergy medication for seasonal allergies like pollen, dust, ragweed, hay fever, dogs, cats, hamsters etc?

There are a few: Not one medicine is better than another....Everyone's system is different...Some people get better with allegra..Others with zyrtec..Others with Claritin or even benadryl (diphenhydramine). These are now over-the-counter...Try some and read the labels. If you don't feel better, see a board certified allergist (www.Acaai.Org). Good luck. ...Read more

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Walnut allergy reaction to its oil?

Walnut allergy reaction to its oil?

Tree nut allergy: If you are allergic to walnut, i would recommend avoidance of all tree nuts and their oils which may not be purified. ...Read more

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Eczema food allergies mistaken for ring worm?

Eczema food allergies mistaken for ring worm?

possibly: The distribution pattern for eczema is fairly predictable, while "ring worm" which is a superficial fungus infection can occur anywhere on the body including scalp, beard, trunk, groin, foot. Both rashes can be itchy, but eczema is really itchy. Eczema responds well to cortisone creams/ointments, while cortisone can potentially worsen ringworm. Doc can scrape the lesion and culture for fungus. ...Read more

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How can seafoods like lobster, crab and squid cause food allergies?

How can seafoods like lobster, crab and squid cause food allergies?

If you are sensitive: If you are sensitive to the proteins in these foods, your body makes antibodies that recognize them and set off an allergic reaction. Most foods have the potential of causing allergies, but a few are more likely and shellfish are among the 8 most common food allergens. ...Read more

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Shellfish allergy. Can I eat mussels?

Shellfish allergy. Can I eat mussels?

Maybe: Shellfish includes clams, oysters, lobster, crabs, shrimp, mussels, etc.... Some people are allergic to all shellfish. Some are allergic to only specific types and tolerate other shellfish. See an allergist for testing. Don't be foolish and take a chance. ...Read more

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Can Benadryl (diphenhydramine) help a swelling and hive reaction (itching) allergic reaction to penicillin?

Can Benadryl (diphenhydramine) help a swelling and hive reaction (itching) allergic reaction to penicillin?

Depends: on the reaction, if just hives and itching, yes benadryl (diphenhydramine) can control it in the right dosage, after discontinuing the offending drug, but if more severe symptoms/swelling you need medical attention with the possible addition of epinephrine and probably steroids, ...Read more

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Allergic reaction (possible anaphylaxis) after allergy testing, what to do?

Allergic reaction (possible anaphylaxis) after allergy testing, what to do?

Allergy testing: Only physicians trained in the specialty of allergy, asthma ; immunology are trained in a monitored situation during residency to perform skin testing for ige-mediated allergy. Some ENT programs are adding this to their training. If you were skin tested by a non-specialist, consult a specialist, if you were skin tested by an allergist, it is likely that you are unusally allergic. ...Read more

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Can pollen allergies cause allergic contact chelitis?

Can pollen allergies cause allergic contact chelitis?

Doubtful : Certainly not by inhalation, but maybe if the lips came in contact with a lot of pollen. If your lips are swelling and you haven't been chewing on weed leaves, you should see your doctor ...Read more

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4 mo boy exclusive breastfeeding. Has rashes on face every time when mom eats prawns or shell seafood. Allergy? Coincidence?

No: Since breast milk does deliver some food allergens consumed by the mother, it is not a coincidence if this happens every time you ate shellfish. I would suggest that you avoid shellfish or discontinue breastfeeding. At age 4 months, it is also time to introduce table foods (no shellfish) to the child's diet since this may actually reduce the risk of developing yet more food allergies. ...Read more

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Can a rash from getting a seafood allergy be painful?

No : The rash that one would get from a shellfish allergy should not be painful. It can be itchy and uncomfortable but not painful. ...Read more

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Rash all over body. Ate seafood, some for first time in Vancouver, BC, Canada , from Calgary,AB, Canada. No allergies. No fever. No nausea. Recommend?

Rash all over body. Ate seafood, some for first time in Vancouver, BC, Canada , from Calgary,AB, Canada. No allergies. No fever. No nausea. Recommend?

Antihistaminic: OTC to help control your symptoms for now, if no improvement or condition worsens, please go to ER or urgent care, avoid all sea food for now, also if you ate in a restaurant ask about any seasonings they might have added, keep a diary of what you ate, and fix an appointment with an allergist to sort it out, good luck ...Read more

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Could people with seafood allergy swim in the ocean?

Could people with seafood allergy swim in the ocean?

Enjoy your swim: Sensible people always swim with a partner, you can bring your medication just as you would if you were going to dine out, and if you start getting sick, do what you must. I've never heard of this being a problem. ...Read more

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Can someone with a severe seafood allergy swim in the ocean?

Can someone with a severe seafood allergy swim in the ocean?

Yes: The risk of an allergic reaction is typically with ingestion of the seafood or inhalation of steam from cooked seafood. There will not be enough protein exposure in the seawater to cause 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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I have a severe allergy to shellfish, so i'm afraid of other seafood. Any advice?

I have a severe allergy to shellfish, so i'm afraid of other seafood.  Any advice?

Get tested: Get tested for lots of shellfish and fish. You may be negative to seafood items you like and are afraid to eat. Then bring a sample of food you want to eat to the allergist's office and have a challenge to be sure it's safe to eat it. Be sure to mention your allergy to any restaurant where you eat, and carry your epipen (epinephrine). A cooking spoon may cross-contaminate a dish, so safest place to eat is home. ...Read more

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Is my allergic reaction after exercising after seafood because of the exercise or seafood allergy?

Is my allergic reaction after exercising after seafood because of the exercise or seafood allergy?

Exercise induced: Food associated anaphylaxis is uncommon, but can happen. Wheat and shrimp are the most common culprits. Patients can eat the food without exercising, or exercise without eating the food and be fine. Be very careful to not eat shrimp within 4 hours of exercise and i would suggest not at all on exercise days. You should also see an allergist and have an Epipen (epinephrine) available. ...Read more

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If you have an allergy to fish does is increase your chances of having an allergy to shellfish or other seafoods?

If you have an allergy to fish does is increase your chances of having an allergy to shellfish or other seafoods?

Maybe a little: From an evolutionary point-of-view fish are closer to us than they are to crustaceans or mollusks. They share few similar proteins and so few similar allergens. Usually allergy to fish doe not mean allergy to shellfish. A few unfortunate people however are allergic to lots of foods. Hope that's not you. ...Read more

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Can I have developed an allergy to shrimp or is the seasoning the culprit? I have eaten seafood all my life including shrimp. I recently had some shrimp that i had an allergic reaction to. I beleive it was the seasoning i may have been allergic to.

Can I have developed an allergy to shrimp or is the seasoning the culprit? I have eaten seafood all my life including shrimp. I recently had some shrimp that i had an allergic reaction to. I beleive it was the seasoning i may have been allergic to.

Based : Based on your history of eating shrimp it is more likely the seasoning is the culprit. One other possibility is that the shrimp was spoiled. The only way to determine if you have a true allergy is to have a sensitivity test performed. ...Read more

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What medicine can help someone with a meat and seafood allergy?

What medicine can help someone with a meat and seafood allergy?

Best - don't eat: At this time, if you are truly allergic, the best thing would ber to void eating them. There is no medication that will completely prevent reactions and it also depends on what kind of reactions you have. As for seafood, are you allergic both to fish and crustaceans? If you haven't seen a board-certified allergist/immunologist you should. If no allergy is documented, you may have a G-I problem. ...Read more

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If someone has shellfish allergies, are they allergic to all seafood?

If someone has shellfish allergies, are they allergic to all seafood?

Not necessarily: but better be cautious, sea food mix would contain shellfish, also shellfish might be cooked in the same pan and contaminates other fish meat, please see an allergist for testing and follow up, meanwhile keep an Epipen (epinephrine) and antihistaminic tablets handy for any accidental exposure, good luck ...Read more

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Hi docs, do you think it's at all possible to join the military if you have a nut/seafood allergy?

Hi docs, do you think it's at all possible to join the military if you have a nut/seafood allergy?

YES: I don't think there should be any reason why you cant. they should have online what the medical restrictions are. ...Read more

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Do i understand this correctly : I have a seafood allergy, however it is safe for me to eat ground flax seed?

Do i understand this correctly : I have a seafood allergy, however it is safe for me to eat ground flax seed?

Not related: One can have a seafood allergy and have no problems with flax seeds, or one can have a seafood allergy and have a separate allergy to flax seeds. Flax if grown on a farm, and is not related to seafood. Also, a person with seafood allergy should actually say what kind of seafood, because many many things live in the sea (seaweed, shrimp, scallops, fish, squid, etc...). ...Read more

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How to cure 18 mos baby from chicken and seafood allergy?

How to cure 18 mos baby from chicken and seafood allergy?

Avoidance: For now, assessment by an allergist is important, to make sure it is real allergy to seafood or chicken or just the additives, epinephrine injectin plus oral antihistamines should be kept handy, your doctor would prescribe the dosage for your child, goodluck ...Read more

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What does seafood allergy really mean, since shrimp, clams, crabs, and squid are all different?

What does seafood allergy really mean, since shrimp, clams, crabs, and squid are all different?

Great question: Better to be specific. Shellfish = “crustaceans” (lobsters, "crayfish", prawns, crabs and shrimp) and “molluscs, ” [abalone, oysters, mussels, and squid (calamari)]. Other fish allergies are to “scaly” and “bony” fish, such as cod, haddock, herring, sprat, halibut, mackerel, trout and salmon. Hard to differentiate when they are cooked together! ...Read more

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Can you become anaphylactic to seafood in adult life if you have no history of any allergies? No family history either.

Yes: You can develop allergies to anything (food, medications, etc.) at any stage of life. Most times there is no history of allergies or any family history. ...Read more

Dr. John Chiu
2,663 doctors shared insights

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


Dr. Cornelia Franz
1,059 doctors shared insights

Rash (Definition)

A rash is a change to skin condition which can affect color, appearance, or texture. It may or may not ...Read more