Other possible triggers include excessive sweating, exposure to metals like nickel or cobalt, and having a personal or family history of eczema, asthma, or other allergic conditions.

Diagnosis is usually made through a physical examination and a review of the patient’s medical history. The appearance and location of the blisters often help doctors distinguish it from other skin problems.

In some cases, additional tests may be needed to rule out fungal infections or allergic reactions that can look similar. This ensures the correct diagnosis before treatment begins.

While there is no permanent cure, symptoms can be managed with proper skincare, trigger avoidance, and medical treatments that help reduce itching and inflammation.