Pemphigus is a rare autoimmune disease that causes blistering and ulceration of the skin and mucous membranes.

The most common signs and symptoms include:

• Blisters and ulcers on the skin

• Thinning and blistering of the mucous membranes, including the mouth, throat, and nose

• Difficulty eating and drinking due to mouth ulcers

• Fatigue

• Weight loss

• Fever