First, the cause of eating crab allergy
Crab is a cold and allergic food. For allergic people, crab meat enters the human circulation through the intestinal wall, which will induce allergic reactions, cause gastrointestinal smooth muscle spasm, vascular edema, rash, asthma, etc., and even cause allergic shock in severe cases.
Because of individual differences, hereditary allergic constitution, the lack or decrease of some enzymes in the body are the basis of allergies, 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 when they ate stale seafood, a large number of histamine-like substances were produced after seafood rotted, which would cause allergies and even food poisoning after being absorbed by the human body.
Second, the performance of eating crab allergies
Some people will feel unwell after eating crabs. For example, they will feel large red pimples on their skin, which are particularly itchy. Some people even have symptoms such as vomiting, headache and abdominal pain. 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, and it will heal itself after 1-2 days.
2. If the allergic symptoms are obvious and the whole body itches unbearable, you can try to take common antiallergic 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 the itchy skin with red rash.
5. If you have difficulty breathing, cold hands and feet, palpitation, etc., you should go to the hospital immediately and explain that you have eaten crabs before.
6. You can'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 raw crabs: the body surface, gills and gastrointestinal tract of crabs are covered with all kinds of bacteria and sludge. Crab-eating should be steamed and cooked thoroughly. Generally, it can be disinfected by heating for more than 30 minutes after boiling.
Second, avoid eating dead crabs: buy dead crabs. The bacteria in the dead crab quickly proliferate and spread into the crab meat, decomposing the amino acids in the crab meat and producing a lot of harmful substances. Eating dead crabs may induce vomiting, abdominal pain and diarrhea. Besides, dying crabs are not suitable for purchase.
Three do not eat overnight crabs: crabs are foods containing more histamine acid. Histamine acid in the leftover crabs overnight will be decomposed into histamine under the action of some microorganisms. Although heating in the pot can kill pathogenic microorganisms, it can not destroy toxins, resulting in histamine poisoning. Therefore, it is best to eat crabs steamed now, generally not more than 4 hours.
Four 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. Generally, one or two crabs can be eaten, and it is best to drink a cup of ginger tea to dispel 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 crab, which is not conducive to digestion and absorption.
Avoid eating persimmons: Do not mix crabs with 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. Therefore, when eating, the crab gills, intestines, hearts (commonly known as hexagonal plates) and stomachs (that is, triangular bone packets with sediment inside) must be removed.
Who can't eat crabs?
1. Patients who have found allergies or allergic asthma after eating crabs should not eat crabs easily in the future.
2. People with sensitive skin or allergic constitution should be careful to eat crabs, and it is best not to choose to eat them.
3. People who are physically weak, such as the elderly and pregnant women, should not eat too much 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, protein and high in fat, which are not suitable for digestion and absorption, and at the same time, they will aggravate spleen and stomach discomfort and have symptoms such as abdominal pain, diarrhea and vomiting.
6. Patients with cholecystitis, cholelithiasis, hepatitis, acute and chronic pancreatitis and severe cardiovascular and cerebrovascular diseases should try to eat less or not to eat crabs.
7. Arthritis and gout patients: Especially gout patients should avoid eating crabs, not to drink beer at the same time, otherwise the condition will be aggravated, or gallstones and kidney calculi will be induced.