Onion is the most common vegetable that's eaten and cultivated widely around the world. However, in addition, it contributes to a allergic reactions in certain individuals whenever they consume onion. On rare occasions, it may also end up being a fatal reaction.



Individuals with onion allergy can get affected with either raw or cooked onions. Raw onions are full of sulfur and protein content, so they cause greater allergy compared to those cooked ones as skillet and cooking denatures the protein within it. This is the reason why people don't get allergies with cooked onions.

Onion is widely utilized in food recipes, so it's tricky to discover a recipe with no onions since it imparts a distinct flavor and odor on foods.Many fast foods, salads, sauces and ketchup are impossible to prepare without onions. If a individual is having onion allergy, then he shouldn't consume and odor foods containing onions, since if a individual is very sensitive to onion vapors, then even the vapors may cause acute allergic symptoms.

Should you be feeling strange distress and breakout of rashes etc after eating onions, then you are afflicted with a rare onion allergy. This allergy is caused by exposure to or ingestion of onions. Normally those who suffer with this allergy experience gas, bloating and digestive distress. But, generally but not necessarily onion allergy results from raw onions.

Causes of Onion Allergy

Onion allergies are caused due to hypersensitivity of a person to the substances present in this vegetable.

Our immune system identifies this vegetable as hazardous and thus, it releases Immunoglobulin E, an antibody into the bloodstream
These antibodies fight against the proteins present in onion and leads to release of histamine through mast cells present in soft tissues throughout the body
When an increased amount of histamine is released into the body, it causes inflammation in the body tissues and causes common symptoms of allergy


Onion Allergy Symptoms:

Since onion allergy is a contact allergy symptoms, the majority of the signs of contact dermatitis are evident in this particular allergy. There are symptoms which occur in the skin, in addition to discomfort in the digestive tract. If a man or woman is allergic to onion, then the symptoms may develop within minutes of swallowing onion and it might take up to one hour prior to repainting. A few of the common symptoms are:

Breaking out of skin in hives,
Itching all over the body
Gas
Nausea
Diarrhea
Headaches and migraines
Shortness of breath
Chest tightness
Coughing
Wheezing
Migraine or headache
Rashes
Abdominal pain
Facial swelling
Vomiting
Eye irritation
Onion Allergy Treatment

If you are allergic to onions, then it is better to eliminate onions from the food. So, before eating outside make sure that food does not contain onion in it.
It is also important to check the labels on ready-made and packaged foods to avoid consuming onions accidentally
If you have consumed onion accidentally, then take antihistamine for curing mild to moderate allergy symptoms
If inflammation in skin has happened, then you can take hydrocortisone to relieve itchiness and inflammation
If severe allergic symptoms have occurred, then you might need an epinephrine injection to restore the body.


Source: https://aderonkebamidele.com/onion-allergy-causessymptoms-treatment/