Allergic Reaction Topic Guide
Allergic Reaction: An allergic reaction is an overreaction to a harmless substance. Symptoms and signs of an allergic reaction include hives, rashes, swelling, itching, wheezing, nausea, and even anaphylactic shock in severe reactions. Treatment involves avoiding triggers, taking oral antihistamines, applying antiinflammatory steroid creams, and using an EpiPen.
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Asthma Medications Asthma is a disease that affects the breathing passages of the lungs (bronchi and bronchioles). Asthma is caused by chronic (ongoing, long-term) inflammation of these passages.
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