Contact Dermatitis - Glossary

Dr. Lakshmi Venkataraman
Medically Reviewed by Dr. Lakshmi Venkataraman, MD
Last Updated on Sep 18, 2017
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Glossary

Itching: Scratchy sensation.

Allergen: A substance that can trigger an allergic reaction. Asthma can be triggered by dust mites, animal dander, mold, and cockroaches.

PUVA: A form of phototherapy that combines the use of psoralens and ultraviolet light to treat skin disorders.

Blister: A collection of serous, bloody or watery fluid under the skin.

Hives: Elevated patches on skin usually caused by an allergic reaction accompanied by a release of histamine into the body tissues. Patches are redder or paler than the surrounding skin and itch intensely.

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