What are the symptoms of eating hairy crab allergy?

Some people will have itching and erythema after eating crabs. In fact, this is an allergic reaction to eating crabs.

First, the cause of eating crab allergy

Crab is a cold allergic food. For allergic people, crab meat enters the human circulation through the intestinal wall, which will induce allergic reactions and cause gastrointestinal smooth muscle spasm, angioedema, rash, asthma and so on. In severe cases, it may even cause anaphylactic shock.

Because of individual differences, hereditary allergic constitution, the lack or reduction of certain enzymes in the body is the basis of allergy, and the body's sensitivity to food is different in some physiological or pathological States, which can also lead to allergies.

Some people had nothing to do with eating seafood, but after eating stale seafood, it will produce a lot of histamine-like substances, which will cause allergies and even food poisoning after being absorbed by the human body.

Second, the performance of eating crab allergies

Some people feel sick after eating crabs. For example, they will feel that there are large red pimples on their skin, which is particularly itchy. Some people even have vomiting, headache, abdominal pain and other symptoms. If these symptoms appear, we must deal with them in time.

Third, what should I do if I am allergic to eating crabs?

1. If the allergic symptoms are mild, you don't need to take any medicine or special treatment. 1-2 days later.

2. If the allergic symptoms are obvious and the whole body itches unbearable, you can try to take common anti-allergic drugs.

3. you can also take vitamin c while taking antiallergic drugs.

4. While taking the medicine, you can also apply dermatitis flat ointment to itchy skin with a red rash.

5. Such as dyspnea, cold hands and feet, palpitation, etc. You should go to the hospital at once, which means you have eaten crabs before.

6. Don't eat seafood such as crabs and shrimps during allergies, and don't eat greasy and spicy food.

Fourth, the precautions for eating crabs

Avoid eating crabs raw: the body surface, gills and gastrointestinal tract of crabs are covered with all kinds of bacteria and sludge. Eat crabs through steaming and cooking. Generally, it can be disinfected by heating for more than 30 minutes after boiling.

Second, avoid eating dead crabs: buy dead crabs. Bacteria in the dead crab quickly proliferate and spread into the crab meat, decomposing amino acids in the crab meat and producing a large number of harmful substances. Eating dead crabs may cause vomiting, abdominal pain and diarrhea. In addition, dying crabs are not suitable for purchase.

Three do not eat crabs overnight: crabs are foods with more histamine acid. Histamine acid in crabs left over overnight will be decomposed into histamine by some microorganisms. Although heating in the pot can kill pathogenic microorganisms, it cannot destroy toxins and lead to histamine poisoning. So it is best to eat steamed crabs now, generally not more than 4 hours.

Fourth, don't eat too much: crab meat is cold and should not be eaten more. People with spleen and stomach deficiency and cold should pay special attention to avoid abdominal pain and diarrhea. You can usually eat one or two crabs, and it is best to drink a cup of ginger tea to drive away the cold after eating crabs.

Five avoid drinking tea water: avoid drinking tea water when eating crabs and within 1 hour after eating crabs. Because boiling water will dilute gastric acid, tea will solidify some components of crabs, which is not conducive to digestion and absorption.

Avoid eating persimmons: Do not mix crabs and persimmons, because tannic acid and other ingredients in persimmons will solidify the meat protein in crabs, which may cause adverse reactions such as vomiting, abdominal pain and diarrhea.

In addition, there are four parts to avoid eating: the body surface, gills and gastrointestinal tract of crabs are covered with pathogenic microorganisms such as bacteria and viruses. So when eating, you must remove the crab's cheeks, intestines, heart (commonly known as hexagonal plate) and stomach (that is, the triangular bone bag with sediment inside).

Who can't eat crabs?

1. Patients with allergies or allergic asthma after eating crabs should not eat crabs easily in the future.

People with sensitive skin or allergic constitution should be careful when eating crabs, and it is best not to choose to eat them.

3. Older people, pregnant women and other people with weak constitution should not eat too many crabs.

Babies should not eat crabs, which parents must keep in mind.

5. People with diarrhea, stomachache, cold, fever or deficiency of spleen and stomach should not eat crabs, because crabs are cold foods with high protein and fat content, which are not suitable for digestion and absorption. At the same time, they will aggravate the discomfort of the spleen and stomach and have symptoms such as abdominal pain, diarrhea and vomiting.

6. Patients with cholecystitis, gallstones, hepatitis, acute and chronic pancreatitis and severe cardiovascular and cerebrovascular diseases should try to eat less or not eat crabs.

7. Arthritis and gout patients: Especially gout patients should avoid eating crabs, and don't drink beer at the same time, otherwise it will aggravate the condition or induce gallstones and kidney calculi.