NMHMW1_180702_245
Existing comment: Treating Poison Gas Effects on the Battlefield

Immediately after exposure to mustard gas, soldiers would be taken to a nearby aid station, often by horse-drawn or motorized ambulance.
Unfortunately, it could take hours for symptoms to develop and soldiers to become aware they had been gassed. Soldiers suspected of being gassed were often segregated and treated as gas patients until their symptoms developed.
Chemical casualties were first stripped of uniforms and other garments, showered, and re-clothed, before being assessed by medical personnel. They were sometimes marked by a crayon cross on the forehead because they could appear well but fall victim to the gas effects several hours later.
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