Shrimp allergy is one of the most common types of food allergies. Symptoms of shrimp allergy may appear within minutes of eating it or even inhaling its scent during cooking, but symptoms vary between mild and serious depending on the condition of the affected person. Therefore, we provide you with a comprehensive medical guide about shrimp allergy, its symptoms, causes, and the most important methods of treatment.

What is a shrimp allergy?

Shrimp allergy is a type of food allergy. It occurs when the immune system reacts abnormally to proteins found in shrimp, which is a type of marine crustacean. The allergy may also be to shrimp only or include several other types of seafood, such as crabs and lobster.

What are the causes of shrimp allergy?

Although shrimp is a rich source of protein and nutrients, some people are exposed to health complications when eating it, which causes symptoms of shrimp allergy to appear. This allergy is due to several reasons that affect the extent of the body’s response, and the main reasons are the following points:

• Allergenic protein: The protein “tropomyosin” found in shrimp is the main cause of allergies, as the body recognizes it as a danger and begins attacking it by producing IgE antibodies.
• Genetics and family history: It is common for a person to develop a shrimp allergy if he has a family history of allergies, whether food or non-food.
• ضعف جهاز المناعة: Some people have a more sensitive immune system, which causes it to react to harmless food substances such as shrimp proteins.
• Eating shrimp for the first time after a late age: In some cases, symptoms of shrimp allergy can appear in adults even if they did not suffer from it in childhood, especially when eating it for the first time after many years of avoiding it.
• Indirect exposure or inhalation: Some people may develop an allergy to shrimp simply by inhaling its steam during cooking or coming into contact with the skin, especially in places where it is cooked a lot.

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What are the symptoms of shrimp allergy?

Symptoms of a shrimp allergy usually appear within minutes to hours of eating it or even just being exposed to it, and their severity varies from one person to another. Here are the most prominent symptoms of a shrimp allergy.

Symptoms of shrimp allergy range from mild to moderate

• Skin itching or rash.
• Redness or swelling of the face, lips, or tongue.
• Stuffy or runny nose.
• Itchy mouth or throat.
• Nausea or stomach cramps.
• Diarrhea or vomiting.

Symptoms of severe shrimp allergy (anaphylaxis)

• Difficulty breathing or wheezing.
• Swelling in the throat or tongue that hinders breathing.
• Sudden drop in blood pressure.
• Severe dizziness or loss of consciousness.

However, it should be noted that if severe symptoms appear, medical help must be sought immediately. حجز استشارتك الآن في Dermatology Center At Al Mousa Specialist Hospital, we have an elite group of the most skilled doctors specializing in allergic diseases, who provide the necessary first aid with the necessary medications.

Diagnosis of shrimp allergy 

The diagnosis of shrimp allergy should be made under the supervision of a doctor specializing in allergy and immunology, as it depends on the patient’s medical history, in addition to some medical tests that confirm the presence of the allergy and determine its severity. As a result, the steps for diagnosing shrimp allergy are as follows:

• Medical history: The doctor begins by asking the patient about the symptoms he feels after eating shrimp, the timing of their appearance, and their frequency. He also asks about the presence of a family history of allergies.
• Skin test: The affected person's skin is pricked with a small amount of shrimp protein extract, and if redness or swelling appears in the area after minutes;
• Blood test: This test measures the amount of IgE antibodies specific to shrimp proteins, and their elevation indicates the presence of an immune response.
• Food challenge test: The patient is given very small amounts of shrimp under close medical supervision, and this test is used in unclear cases;
• Exclude similar cases: Sometimes symptoms may be due to food poisoning or intolerance to certain substances, and not symptoms of an actual allergy, so it is important to distinguish between them.

Shrimp allergy treatment

Treatment of shrimp allergy depends mainly on avoiding eating shrimp completely, in addition to dealing with the symptoms when they appear, as there is no definitive treatment for the allergy, but it can be controlled through some important steps, which we will explain to you in the following lines:

• Avoiding shrimp is the primary treatment, along with avoiding other types of marine crustaceans such as crabs and lobsters, especially if the patient is allergic to more than one type.
• Read the ingredients of prepared foods carefully, and ensure that foods served in restaurants do not contain shrimp extracts or marine ingredients.
• Use antihistamines to treat mild symptoms of shrimp allergy, such as itching or rash.
• Also, anyone who suffers from severe allergies should carry an emergency epinephrine injection and use it as soon as symptoms of anaphylaxis appear.
• See an allergist for periodic follow-up and to ensure the extent of the condition’s development. Immunotherapy may also be suggested in some special cases.
• Raising awareness of the disease by informing parents, those around them, and teachers in the case of children of the existence of this allergy.

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Tips for those with shrimp allergy

If you are someone who suffers from a shrimp allergy, following some simple tips may protect you from serious complications. Here are the most important tips to protect yourself and deal with your condition safely:

• Avoid shrimp completely, even small amounts;
• Always check the ingredient list especially for frozen products, or ready-to-eat and packaged meals.
• Ask about ingredients and cooking method;
• You may have an allergy to species such as crab or lobster, so be sure to have them checked by a specialist doctor.
• Carry an alert card or bracelet stating that you have a shrimp allergy, which can help others come to your rescue in an emergency.
• Always carry the medication your doctor has prescribed with you; Symptoms of shrimp allergy.
• Tell your family, friends and colleagues that you have this allergy;
• Some people are affected by simply inhaling the steam of shrimp, so stay away from the kitchen when cooking them.
• Follow up on your condition constantly with Al Mousa Specialist Hospital;

Frequently asked questions about shrimp allergy symptoms

How long does a shrimp allergy last?

Usually, a shrimp allergy lasts a lifetime. It does not disappear with time in most cases, but the symptoms resulting from eating shrimp appear within minutes to hours and disappear after treatment.

How do you know if you are allergic to shrimp?

You can know this by the appearance of symptoms such as itching, rash, shortness of breath or swelling of the face after eating shrimp, and the specialist doctor confirms the diagnosis with allergy tests.

What causes eating shrimp?

Eating shrimp may cause an allergic reaction in some people, including mild symptoms such as itching, or severe symptoms such as anaphylaxis that require immediate treatment.

Symptoms of a shrimp allergy indicate the need to pay attention to the affected person, especially if it develops into severe conditions such as anaphylaxis. Therefore, when you notice any abnormal signs after eating shrimp,

Medical references 

Shellfish allergy – mayoclinic

Allergies: Shellfish – clevelandclinic