Food allergies occur when the immune system mistakenly identifies certain foods as harmful and reacts by releasing chemicals such as histamines. This can lead to a range of symptoms that vary in severity. Here are five common symptoms of a food allergy:

1. Skin reactions: One of the most common symptoms of a food allergy is hives, which are red, raised, and itchy welts that can appear on the skin. Other skin reactions may include eczema, itching, and swelling of the lips, tongue, or throat.

2. Gastrointestinal problems: Food allergies can also cause a variety of digestive symptoms, including nausea, vomiting, diarrhea, abdominal pain, and bloating. These symptoms usually occur shortly after consuming the allergenic food.

3. Respiratory issues: Some people with food allergies may experience respiratory symptoms such as coughing, wheezing, shortness of breath, chest tightness, or a runny or stuffy nose. Severe allergic reactions can also lead to anaphylaxis, a life-threatening condition that requires immediate medical attention.

4. Anaphylaxis: Anaphylaxis is a severe allergic reaction that can affect multiple organs in the body and can be life-threatening if not treated promptly. Symptoms of anaphylaxis may include difficulty breathing, a rapid or weak pulse, a sudden drop in blood pressure, dizziness or fainting, and loss of consciousness.

5. Other symptoms: In addition to the above symptoms, food allergies can also cause a range of other symptoms, including headaches, fatigue, irritability, and difficulty concentrating. It’s important to note that symptoms can vary from person to person and may not always be immediately apparent.

If you suspect that you or someone else has a food allergy, it’s important to seek medical advice and possibly undergo allergy testing to determine the specific allergen. In cases of severe food allergies, it’s crucial to avoid the allergenic food and carry an epinephrine auto-injector (such as an EpiPen) in case of an emergency.