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histamine
Table of Contents
Introduction References & Edit History Related Topics
Images & Videos
pathways of complement activation
Why scratching an itch actually makes it worse
antihistamines, including Benadryl
Why do people have allergies in the spring?
For Students
histamine summary
Read Next
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Why Do Mosquito Bites Itch?
Bohr atomic model of a nitrogen atom.
How the Nitrogen Cycle Works
Hand washing. Healthcare worker washing hands in hospital sink under running water. contagious diseases wash hands, handwashing hygiene, virus, human health
17 Questions About Health and Wellness Answered
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Obscure Freaky Smiling Psycho Man, phsychopath, sociopath, evil, mean
What’s the Difference Between a Psychopath and a Sociopath? And How Do Both Differ from Narcissists?
The Titanic. (disasters, ships)
Timeline of the Titanic’s Final Hours
Secret Service Agent Listens To Earpiece
Secret Service Code Names of 11 U.S. Presidents
Vietnam War. U.S. President Lyndon B. Johnson awards the Distinguished Service Cross to First Lieutenant Marty A. Hammer, during a visit to military personnel, Cam Ranh Bay, South Vietnam, October 26, 1966. President Johnson
Vietnam War Timeline
Orange basketball on black background and with low key lighting. Homepage 2010, arts and entertainment, history and society
The 10 Greatest Basketball Players of All Time
The Battle of New Orleans, by E. Percy Moran, c. 1910. Andrew Jackson, War of 1812.
26 Decade-Defining Events in U.S. History
Close up of praying mantis walking on stone ground against a blurred background in Japan
6 Animals That Eat Their Mates

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Videos

Why scratching an itch actually makes it worse
Understanding the chemical process of itching and why scratching is futile.
Video: © American Chemical Society (A Britannica Publishing Partner)
Why do people have allergies in the spring?
Learn what allergies are and what causes them.
Video: © American Chemical Society (A Britannica Publishing Partner)

Images

pathways of complement activation
The main function of complement proteins is to aid in the destruction of pathogens...
Encyclopædia Britannica, Inc.
antihistamines, including Benadryl
Antihistamines such as Benadryl (diphenhydramine) and Claritin (loratadine) can be...
© Alison Platt Kendall
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