A defensive maneuver in which one or more linebackers or defensive backs, who normally remain behind the line of scrimmage, instead charge into the opponent's backfield. However, in the 3-4 defense, one linebacker typically rushes the passer with the three down linemen.
Blisters are commonly caused by friction from tight shoes, herpes, chicken pox, poison ivy and allergic reactions. More uncommon are disorders that only cause blisters on the hands and feet. See your doctor for an accurate diagnosis if you have blisters on your hands and feet, particularly from an unknown cause.
Pompholyx is a type of eczema that causes tiny blisters on hands and irritation. (Eczema is a condition causing skin inflammation.) Pompholyx is also called dyshidrotic eczema or vesicular eczema of the hands and feet. This inflammation presents as recurrent crops of the deep-seated blisters on the palms and soles.