Food allergies are common among both children and adults. In some cases, the symptoms may be mild and go unnoticed, while in other cases, people may experience severe reactions that require immediate medical attention.

Food allergies occur when the immune system mistakenly identifies a particular food as harmful and triggers an immune response. Here are some of the most common symptoms of food allergies:.

Hives or Skin Rash

One of the most common signs of an allergic reaction to food is a skin rash. Hives can appear anywhere on the body and can be small or large. They are typically raised and red or pink in color.

Swelling

Swelling of the lips, tongue, and face is another symptom that may indicate a food allergy. This swelling is usually accompanied by itching and can be quite uncomfortable.

Difficulty Breathing or Wheezing

Severe allergic reactions to food can cause difficulty breathing or wheezing. This is a serious symptom that requires immediate medical attention, as it can be life-threatening.

Abdominal Pain and Diarrhea

Food allergies can also cause gastrointestinal symptoms, including abdominal pain and diarrhea. These symptoms are commonly associated with allergies to milk, soy, and wheat.

Nausea and Vomiting

People who are allergic to certain foods may also experience nausea and vomiting. This can be a result of the immune system’s response to the food, which can irritate the digestive system.

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Dizziness or Fainting

In some cases, food allergies can cause dizziness or fainting. This is also a serious symptom that requires immediate medical attention.

Anaphylaxis

Anaphylaxis is a severe allergic reaction that can occur within minutes of exposure to an allergen. Symptoms of anaphylaxis may include difficulty breathing, low blood pressure, and loss of consciousness.

This is a medical emergency that requires immediate treatment with epinephrine.

Eczema

Eczema is a skin condition that causes dry, itchy patches on the skin. It is often associated with food allergies, particularly in children.

Coughing and Sneezing

Some people may experience coughing and sneezing as a result of a food allergy. This is more common in people who are allergic to airborne allergens, such as pollen or animal dander, as well as certain foods.

Headache

Lastly, headaches are another possible symptom of food allergies. While they are not as common as some of the other symptoms on this list, some people may experience headaches after consuming a particular food.