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Allergies
An allergy occurs when the body reacts to a substance. This may cause a
mild to severe problem. There are different kinds of allergies. The most
common are:
• Airborne allergies such as pollen, mold, pet dander or dust
• Contact allergies such as metal, latex or chemicals
• Food allergies such as eggs, peanuts, nuts, milk, soy, wheat or shellfish
• Drug allergies

An allergy cannot be cured, but treatment can help you feel better.
Signs
People can have different signs from the same allergy. Any type of allergy
can cause hives or skin rashes and wheezing or trouble breathing. Other
signs can depend on the cause of the allergy.

Pollen, mold, pet dander or dust allergies
─ Itchy, runny or stuffy nose
─ Sinus pressure
─ Sneezing
─ Itchy, red, swollen, burning or watery eyes
─ Itchy throat or cough
─ More mucus
─ Decreased taste or smell
─ Headache
Contact allergies
─ Itchy, red, swollen, burning or watery eyes
─ Swelling

Food allergies
─ Nausea or vomiting
─ Abdominal pain or cramping
─ Diarrhea
─ Itchy, runny or stuffy nose
─ Itchy throat or cough