Pemphigus is a rare autoimmune disorder that causes painful blisters on the skin and mucous membranes. In this condition, the body's immune system mistakenly attacks proteins that help hold skin cells together, leading to the formation of these blisters. The most common types are pemphigus vulgaris and pemphigus foliaceus. Symptoms of pemphigus include painful sores, itching, and difficulty swallowing if blisters form in the mouth or throat. Treatment typically involves medications that suppress the immune system, such as corticosteroids, to reduce inflammation and prevent new blisters from forming. Early diagnosis and management are crucial for better outcomes.