Fish Allergy – its causes and symptoms

Fish Allergy

Less common than other food allergies, fish allergies are not usually first observed in young children and may not become apparent until adulthood.
40% of people reporting fish allergy had no case with the allergy until they became adults.
Fish is of several types. Some develop an allergy to finned fish while others to shellfish. It is seen that people suffering from allergy to one type can freely consume fish from the other set while there are some who need to stay away from all types.

How to detect fish allergy?

The fish mix skin prick test is used to detect fish allergy. The mix contains cod, mackerel, tuna, and salmon. It is possible that one is allergic to a type while not to others, hence separate testing may be necessary.
Most people suffer from allergic reactions on consuming fish, but some may also react to touching fish and inhaling vapors when it is being cooked.
Though the initial reactions were mild, it can sometimes cause severe reaction later on. Unless it is possible to detect exactly which fish causes the allergy, it is best to avoid eating all fish types.
Some people develop the allergy later in the life and may continue to experience the symptoms for the rest of their life.
For a child with fish, allergy considers having an injectable epinephrine on hand. The doctor will prescribe the injection if needed. Those taking care of the kid should be made aware of the allergy and the child made to wear a medical alert bracelet.
An allergic reaction in a person occurs when the body mistakes the protein in fish to be a certain harmful element and releases antibodies to fight it.

The body’s immune system works hard to fight the foreign body and results in reactions. Chemical called histamine is released during the process.

What Reactions Does a Fish Allergy Produce?


• stomachache

• vomiting

• diarrhea

• wheezing

• trouble breathing

• coughing

• hoarseness

• throat tightness

• itchy, watery, or swollen eyes

• hives

• swelling

• a drop in blood pressure, causing giddiness or loss of consciousness

• red spots

A child may suffer from all or only some of the symptoms and in varying measures each time.

Fish can also cause Anaphylaxis, which is life threatening. If the child is suffering from any of the symptoms especially breathing problem, inject epinephrine right away.


Emergency Phone Number

Call the number 911 and take him to the emergency room.

Older kids are trained by the doctor on how to use it themselves. If the child is known to suffer from the severe reaction, the injection must be available with him at all times. It should be kept in a locker at school but in his bag and purse if any.
The child may also be administered an antihistamine but after the epinephrine in case of a serious reaction to fish consumption.

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