My stepdad gets this large blister on the outer palms of both hands. Any ideas?
He says that this blister raises up anywhere from every couple weeks to every few months. A large blister will raise on the outer palm of one hand, and it will eventually break open. After draining, the skin around it will peel and then it will be gone. Then it will move to the other hand. It never affects both hands at the same time. I'm a nursing student, and after searching through all my textbooks and all over the web, the closest thing I've found to it is Dyshidrotic Eczema, but this condition says you will have tiny blisters. These are about an inch or an inch and a half in circumference. Any help would be greatly appreciated!
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