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Doctor insights on: Allergic Reaction To Crab Meat Symptoms

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Can you have a allergic reaction to crab 4 hours after eating it ? And would a late reaction be life threatening?

Can you have a allergic reaction to crab 4 hours after eating it ? And would a late reaction be life threatening?

Unusual: Allergic reactions to food , except for red meat, usually occurs within 2 hours after ingestion. However I would urge you to see an allergist to get tested before you touch crab again. Usually the earlier the onset , the more severe the reaction. But delayed anaphylaxis (2-8 hrs later) can also be life-threatening. ...Read more

Dr. John Chiu
2,638 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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Can you get an allergic reaction from a crab apple tree?

Can you get an allergic reaction from a crab apple tree?

Allergy: Allergy can occur to almost any protein that is foreign to the human body, and crab apple tree pollen could be an allergen. ...Read more

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My 9 yr old daughter ate fresh crab tonight n within minutes was ichy n had red knuckkes.. Appears to be a mild allergic reaction to shell fish.

My 9 yr old daughter ate fresh crab tonight n within minutes was ichy n had red knuckkes..  Appears to be a mild allergic reaction to shell fish.

Allergy or not: Could be a shellfish allergy, but she'll fish in some people can directly release limited amounts of histamine causing mild skin symptoms usually quantity related. Check with your pcp or a board certified allergist. ...Read more

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I am allergic to seafood but i can eat tunafish and breaded shrimp can I eat lobster and crab without having an allergic reaction?

I am allergic to seafood but i can eat tunafish and breaded shrimp can I eat lobster and crab without having an allergic reaction?

Difficult to answer: Seafood includes shellfish and fish. Shellfish includes mollusks and crustaceans. You describe being able to eat a sea dwelling fish (tuna) and a crustacean (shrimp). Therefore you are not allergic to seafood. Lobsters and crabs are crustaceans and share the same allergy inducing protein tropomyosin. It does not appear you are allergic to that or you would have had trouble with shrimp. ...Read more

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When i eat lobster, crab, & shrimp my stomach starts to bubble and makes my stomach feel full.So I have to throw up is that an allergic reaction?

When i eat lobster, crab, & shrimp my stomach starts to bubble and makes my stomach feel full.So I have to throw up is that an allergic reaction?

Check with your doc: Blood testing for allergies has become much more accurate. Check with your doc if you should have some screening. ...Read more

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Crabs from time to time. What is the story per nutrition health for eating this crab meat?

Crabs from time to time. What is the story per nutrition health for eating this crab meat?

Crabs and nutrition: I'm hoping you don't mean the kind of "crabs" that crawl on your skin? The seafood crab meat can be very nutritious -- a source of protein and many minerals your body needs. It can also be high in sodium and cholesterol, though. Taken in context it can be a healthy food to eat. For specific details: http://tinyurl.Com/5rq2j8l. ...Read more

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How much crab meat is too much during pregnancy?

How much crab meat is too much during pregnancy?

Limit to 12 oz./week: Authorities advise limiting most seafood to 12 oz per week to minimize mercury exposure, but there are benefits to moderate seafood consumption too. Seafood high in mercury like tuna should be limited even more, while seafood with the lowest mercury like wild salmon & sardines can be eaten more. See
http://www.Babycenter.Com/0_eating-fish-during-pregnancy-how-to-avoid-mercury-and-still_10319861.Bc. ...Read more

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How much imitation crab meat in sushi is ok to eat while pregnant?

How much imitation crab meat in sushi is ok to eat while pregnant?

Sushi & pregnancy.: Sushi should be avoided during pregnancy for two reasons. (1) risk of bacterial infection complicating the pregnancy. (2) risk of exposure to mercury complicating the pregnancy. Certainly not worth the risk during pregnancy. Cooked sushi or vegetable-only sushi should be fine, but then we'd worry about the person making the sushi having washed his hands after handling raw fish. ...Read more

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What do people with wheat allergies eat besides meat?

What do people with wheat allergies eat besides meat?

Lots of things!: There are lots of web sites that offer specific recipes for people with food allergies, or you can purchase foods that don't contain wheat. An internet search for 'wheat allergy recipes' will help. ...Read more

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I'm a 43 yr old female with allergies to meat & dairy. Do I risk developing autoimmune disease or other illness if I don't eliminate these foodd?

I'm a 43 yr old female with allergies to meat & dairy. Do I risk developing autoimmune disease or other illness if I don't eliminate these foodd?

IgE-mediated allergy: True food allergies or IgE-mediated allergies to cows milk and meat would not put you at risk for developing an autoimmune disease. If you are truly allergic then you should strictly eliminate these foods from your diet as even small, accidental exposures can cause life-threatening reactions. Sounds like you might need to discuss your concerns with allergist or primary doctor to determine risks. ...Read more

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How do I diet with food allergies? Just don't eat anything but greens and meat and fruit?

How do I diet with food allergies? Just don't eat anything but greens and meat and fruit?

Dieting is never fun: First avoid the foods to which you are allergic. With any luck some will be fattening ones. Then eat fewer calories with the foods that are left. You may find it useful to consult with a clinical nutritionist. You look marvelous already. ...Read more

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Developed so many food allergies during last pregnancy(1yr ago) now I can't hardly eat anything but meat-could these go away if I got pregnant again?

Developed so many food allergies during last pregnancy(1yr ago) now  I can't hardly eat anything but meat-could these go away if I got pregnant again?

More details: I am not aware of pregnancy creating food allergies and wonder what your reactions have been and to which foods. If you had severe morning sickness during the pregnancy, the reactions to food now may well be psychological. Consult an allergist if you want this problem resolved. ...Read more

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Have unknown food allergies- been eating unseasoned red meats, asparagus w pure olive oil no sauces- still geting sick-could it b red meat?

Have unknown food allergies- been eating unseasoned red meats, asparagus w pure olive oil no sauces- still geting sick-could it b red meat?

YesAlpha Gal Allergy: Galactose alpha 1,3 galactose (a.k.a Alpha gal allergy) You may have reactions 3-6 hours after eating mammalian meats. You should be able to eat Poultry and fish. Be careful! Some people are so sensitive that you may have trouble with cross-contamination. Sandwich shops, grilled foods with mixture of juices, Fast foods with beef flavorings. Even rice made with beef bullion. ...Read more

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Can crab allergies cause headaches?

Can crab allergies cause headaches?

Possibly: Allergic reactions to food usually result in hives, itching, breathing problems, throat swelling or GI symptoms but could include headache. Some foods commonly trigger headaches in migraine suffered such as chocolate or aged cheese. These are not true food allergies. ...Read more

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What can cause crab allergies?

What can cause crab allergies?

Depends: Crab allergy is a shellfish allergy and can develop at any time during adulthood. Why some adults can consume crabs their entire life without any problems and others can go on to develop symptoms is unknown. Shellfish allergy is a common adult allergen and symptoms can vary from one accidental exposure to the next so avoidance once symptoms develop is the best way to manage. ...Read more

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Have eaten softshell crabs and crabcakes for years. Tell me please what causes crab allergies?

Have eaten softshell crabs and crabcakes for years. Tell me please what causes crab allergies?

Shellfish protein: The part of the crab (or shellfish) that most commonly leads to allergy is the protein found in the food. I would recommend skin testing to crab and other shellfish at an allergist's office. ...Read more

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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

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Can people with shellfish allergies eat imitation crab and be okay?

Can people with shellfish allergies eat imitation crab and be okay?

Probably: It's important to read food labels when dealing with food allergies. Typically imitation crab is fish with artificial flavor and color. Be sure to read label just to make sure. ...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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Penicillin normal symptoms and allergic reaction symptoms?

Penicillin normal symptoms and allergic reaction symptoms?

Side effects: Side effects include GI upset possible diarrhea and rash. Allergic hives swallowing and breathing difficulties. The latter can be life threatening events and emergent tax needed. ...Read more

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What are signs and symptoms of an allergic reaction to food?

What are signs and symptoms of an allergic reaction to food?

Varies: Immediate reactions to a food can include hives, feelings of throat tightening and itching, shortness of breath, flushing of the skin and overwhelm feeling of doom. This can develop into nausea and vomiting as well as diarrhea. Some foods can cause a delayed skin reaction such as eczema and not always the immediate reaction. As always consult with your doctor get tested and avoid possible foods. ...Read more

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What are the symptoms of an allergic reaction to peanuts?

What are the symptoms of an allergic reaction to peanuts?

Several symptoms: True allergic reactions to peanuts usually occur within a few minutes of ingestion (occasionally after 1-2 hours) and may include hives, shortness of breath, cough, wheezing, throat discomfort, swelling of the lips/tongue, vomiting or diarrhea. ...Read more

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What are the symptoms of an allergic reaction to insect bite?

Depends: If it is mild- just some redness and itching, an antihistamine, such as Benadryl (diphenhydramine) will help. People who get severe reactions- such as difficulty breathing, or swelling of the mouth, tongue, or throat, should carry an epi-pen, which is injectable epinephrine. ...Read more

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Is it true that a migraine be a symptom to an allergic reaction?

Is it true that a migraine be a symptom to an allergic reaction?

Yes but...: Migraine is a complex cascade of neurologic symptoms, the most prominent being the pain. Other effects of migraine include vision changes, loss of muscle control, changes in normal mental function. Migraine is triggered by a long list which can include medications, foods, environmental stimuli, the usual triggers are not true allergies, but an allergic reaction can be happening at the same t. ...Read more

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How long should an allergic reaction symptom to an antibiotic last for?

How long should an allergic reaction symptom to an antibiotic last for?

Antibiotic allergy: Antibiotic allergies can clear up in a day or last up to six months. Fortunately, most resolve relatively quickly, over a few days. We do not yet know why some persist for a long time and require strong medications like oral steroids (e.g. Prednisone) in order to settle down. ...Read more

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What can be used to stop the symptoms of a latex condom allergic reaction?

What can be used to stop the symptoms of a latex condom allergic reaction?

Benadryl (diphenhydramine): Cream, spray, or oral pills. If severe, see your doctor. Use nitrile condoms next time (but please always use a condom). ...Read more

Dr. John Chiu
1,044 doctors shared insights

Allergic Reaction (Definition)

Sensitivities to substances, called allergens, that come into contact with the skin, nose, eyes, respiratory tract, and gastrointestinal tract. They can be inhaled into the ...Read more