allergy asthma information 1 articles:

Allergies to medications/drugs are complicated because they can be caused by many different medications, resulting in a wide variety of signs and symptoms that may affect various organs or parts of the body. Furthermore, some drugs can cause adverse affects with symptoms that closely resemble those of an allergic reaction. The difference is that true drug allergy is caused by a hypersensitive immune system that creates IgE antibodies against an otherwise harmless substance in the medication.
allergy asthma information 2 articles:

While most allergic reactions to food are relatively mild, a small percentage of food-allergic individuals have severe reactions that can be life-threatening. Anaphylaxis is a rare but potentially fatal condition in which several different parts of the body
allergy asthma information 3 articles:

Food allergies can cause a host of symptoms , including : swelling of the lips; tongue or throat; hoarseness; cough; hives ; skin rashes ; a runny nose and watering eyes; and asthma . Sometimes symptoms are limited to nausea, vomiting, or cramping diarrhea. Symptoms of a food allergy are highly individualistic and usually begin within minutes to a few hours after having eaten the offending food.
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