Usually, pemphigus is not contagious. Pemphigus belongs to autoimmune, herpetic skin disease, its cause is mainly related to the immune system disorders and other factors, may be the immune cells “attack” their own tissues, destabilizing the body, which led to the emergence of the disease, so the pemphigus is generally not contagious. Pemphigus-like disease is most common in the chest, abdomen, armpits and groin, etc. The affected skin will appear erythematous, blisters and other symptoms, blister fluid clarification, blister wall is tense and shiny, vesicles and oozing, often accompanied by itchy conditions, and most often seen in the elderly. For people suffering from pemphigus-like blisters, it is recommended to go to a regular hospital to consult a doctor to understand the relevant issues and follow the doctor’s instructions for standardized diagnosis and treatment.