An allergy occurs when your immune system reacts to a foreign substance, such as pollen, bee venom, or pet dander, or to foods that most people don't have a reaction to.
Your immune system produces substances called antibodies. When you have an allergy, your immune system produces antibodies that recognize a particular allergen as harmful, even though it is not. When you are exposed to an allergen, your immune system reacts by inflaming your skin, sinuses, respiratory tract, or digestive system. The severity of allergies varies from person to person and can range from mild irritation to anaphylaxis, a potentially life-threatening emergency. Although most allergies cannot be cured, treatment can help reduce allergy symptoms. symptom
Allergy symptoms depend on the substance involved and can affect the respiratory tract, sinuses and nasal passages, skin and digestive system. Allergic reactions can vary from mild to severe. In some severe cases, allergies can trigger a life-threatening reaction called anaphylaxis.
Some symptoms of an allergic reaction include:
- Itchy, watery eyes.
- Itchy nose.
- Sneezing.
- Runny nose.
- Rashes.
- beehin (rash, raised red plaques)
- stomach cramps.
Vomiting. Hay fever, also known as allergic rhinitis, can cause:
- sneezing
- Itching in the nose, eyes or corners of the mouth
- Running, stuffy nose
- watering, redness or swelling of the eyes (conjunctivitis)
Food allergies can cause:
- Tingling in the mouth
- swelling of the lips, tongue, face or throat
- urticaria
- Allergic reactions
Allergies to insect bites can be caused by:
- Extensive swelling (edema) at the injection site
- Itching or hives all over the body
- Coughing, chest tightness, wheezing or shortness of breath
- Allergic reactions
Drug allergies can cause:
- urticaria
- itchy skin
- rash
- facial swelling
- panting
- Allergic reactions
Atopic dermatitis is an allergic skin disease, also known as eczema, that causes skin:
- itching
- turns red
- exfoliation or exfoliation
Allergic reaction
Some types of allergies, including allergies to food and insect bites, can cause a severe reaction called anaphylaxis. Anaphylaxis is a life-threatening medical emergency that can cause shock.
Signs and symptoms of an allergic reaction include:
- loss of consciousness
- lowering of blood pressure
- severe shortness of breath
- rash
- dizziness
- fast, weak pulse
- Nausea and vomiting
when to go to the doctor
You can contact your healthcare provider if you have symptoms that you think are caused by allergies and over-the-counter allergy medications do not provide enough relief. If symptoms appear after starting a new medication, call the prescribing physician immediately. For a severe allergic reaction (anaphylaxis), call 911 or your local emergency number or get emergency medical help. If you carry an epinephrine auto-injector (Auvi-Q, EpiPen, etc.), give yourself an injection right away. Even if your symptoms improve after an epinephrine injection, you should go to the emergency room to make sure your symptoms don't return after the injection wears off.
0 Comments