Bruising and Bleeding. Bruising or bleeding after an injury is normal. However, some people have disorders that cause them to bruise or bleed too easily. Sometimes people bleed without any obvious triggering event or injury.
The skin of victims of mustard gas blistered, the eyes became very sore and they began to vomit. Mustard gas caused internal and external bleeding and attacked the bronchial tubes, stripping off the mucous membrane. This was extremely painful and most soldiers had to be strapped to their beds.
1 The poison gas was among the most feared the weapons used in World War I. 2  The soldiers feared the deadly agony and long-drawn suffering caused by poison gasses. 3  Tear gas grenades were initially used in August 1914 by the French.