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.
Dyshidrosis causes very small, fluid-filled blisters to occur on the soles of the feet, the palms of the hands or sides of the fingers. Dyshidrosis, also known as dyshidrotic eczema or pompholyx, is a skin condition in which very small, fluid-filled blisters appear on the palms of your hands and the sides of your fingers. The soles of your feet also can be affected. The blisters that occur in dyshidrosis generally last around three weeks and cause intense itching.