Sucking blister. The oval blister pictured here was present at birth and is a result of normal sucking behavior in utero. Sucking blisters are fairly common and are usually located on the forearm, wrist, or hand. They are most often solitary and involve only one upper extremity. However, lesions involving both hands, or even involving a foot, are sometimes seen. The sucking blister resolves spontaneously as soon as bottle or breast is offered as a dietary substitute.
Wearing shoes that do not fit properly or wearing shoes without socks can cause blisters, which can become infected. When treating blisters, it’s important not to “pop” them. The skin covering the blister helps protect it from infection. Use an antibacterial cream and clean, soft bandages to help protect the skin and prevent infection.