Blister agent

Chemicals that result in blistering and skin irritation and damaging

A blister agent (or vesicant) is a chemical compound that causes severe skin, eye and mucosal pain and irritation in the form of severe chemical burns resulting in fluid filled blisters. Named for their ability to cause vesication, blister agent refers in common parlance to those agents which are developed for, or have been in the past utilized as chemical weapons, though some naturally occurring terpenoids such as cantharidin and T2 mycotoxin fall under this class. Exposure to blister agents is widely incapacitating, but often precipitates a delayed effect, with symptoms developing one to twenty four hours following the initial contact with the agent.

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