cardinal symptoms of allergic reaction
There are several cardinal symptoms of an allergic reaction. These symptoms can vary depending on the severity of the reaction and the individual, but commonly include:
1. Skin rash or hives: This can appear as red, itchy bumps or patches on the skin. It may be localized or spread throughout the body.
2. Swelling: Swelling, also known as angioedema, can occur in various parts of the body, such as the face, lips, tongue, or throat. It may lead to difficulty breathing or swallowing.
3. Itching: Itching can be a widespread symptom during an allergic reaction and may affect different areas of the body.
4. Breathing difficulties: Wheezing, shortness of breath, and coughing may occur due to swelling and inflammation of the airways.
5. Gastrointestinal symptoms: Some people may experience symptoms like nausea, vomiting, abdominal pain, or diarrhea during an allergic reaction.
6. Watery, itchy eyes: Allergic conjunctivitis is a common symptom, causing redness, itching, and excessive tearing of the eyes.
7. Runny or congested nose: Allergies often trigger nasal symptoms such as sneezing, a runny or congested nose, and itching in the nose or throat.
8. Anaphylaxis: Anaphylaxis is a severe allergic reaction that can be life-threatening. Symptoms include a sudden drop in blood pressure, rapid heartbeat, dizziness, confusion, difficulty breathing, and loss of consciousness.
It is important to note that allergic reactions can range in severity from mild to severe. If an individual experiences any severe symptoms or anaphylaxis, immediate medical attention should be sought.