Excessive histamine in seafood can cause people's discomfort. A few people eat fresh fish or seafood because of their natural lack of enzymes to decompose histamine, which will cause allergies. Some of them are manifested in pimples on some parts of the body (face, legs, arms, and even the whole body) with itching symptoms.

Extended data

symptom

What are the symptoms of seafood allergy? People often have a special kind of poisoning after eating seafood, which is characterized by allergic symptoms such as itchy skin, redness and edema. However, these people may only be sensitive to certain fish. If you do subcutaneous experiments or monitor that there is no allergic reaction to eating seafood, you can still eat alternative fish or seafood without rejecting all seafood.

If you eat stale or rotten green skin red meat fish, it can cause poisoning; Pickled salted fish, if the raw materials are not fresh or pickled, contain more histamine, which can also cause poisoning after eating. People with allergies may also have poisoning symptoms if they eat a small amount of histamine.

Poisoning occurs quickly, often at 0.5~ 1 hour after eating, sometimes as long as 5 minutes, and for a long time as long as 4 hours. Symptoms are mild at onset, recovery is quick, and occasionally death occurs. Often manifested as blushing, dizziness, headache, heartbeat, palpitation, chest tightness, shortness of breath, swelling of the face and lips, numbness of the tongue and limbs, nausea, vomiting, itchy skin and so on.

cause of a disease

The reason of seafood allergy is that seafood is rich in a large number of heterogeneous proteins, which directly or indirectly activate immune cells, cause the release of chemical mediators, and then produce a series of complex biochemical reactions. When antibody and antigen work together, the human body will show allergic symptoms.

Learn common sense

1, common symptoms of food allergy:

The symptoms of food allergy usually occur slowly, but some people will react immediately after eating a certain food. In most cases, after fasting those allergic foods for 60-90 days, these foods can be brought back into the diet without any adverse reactions.

2. The following are the most common symptoms of food allergy:

Acne, especially acne, arthritis, insomnia, asthma, intestinal problems, colitis, overweight, depression, sinus problems, fatigue, ulcers and headaches that grow near the chin or mouth.

In addition to these symptoms, when checking whether you have allergies, your doctor should also look for the following symptoms: anemia and pallor, bed wetting, enuresis, and red circles on your cheeks (like blushing, which also occurs in children);

Repeated colds (occurring in children), conjunctivitis, eye pain, tears, watery eyes, itching, redness, dizziness and swelling, sensitivity to light, severe drooling, diarrhea, and periodic blurred vision;

Nasal congestion or runny nose, repeated ear infections, fluid retention in the body, tinnitus, hearing loss, unusual body odor, hyperactivity, pH value in the body is either too acidic or too alkaline, recurrence of various diseases, various phobias, learning disabilities, poor memory and attention, swollen fingers, cold hands, severe menstrual disorder, rapid weight gain, and muscle disharmony.

References:

Seafood allergy. Baidu Encyclopedia