What should you know about bullous pemphigoid in older adults?

Bullous pemphigoid is an autoimmune condition in which the immune system attacks structures that hold the skin layers together. Tense, fluid-filled blisters can appear on normal-looking or irritated skin, often with significant itching. Some people first have an itchy rash or raised patches before blisters develop.

Older adults may be more vulnerable to dehydration, skin damage, reduced mobility, and infection when blisters are widespread. Medicines and other illnesses can affect which treatment is suitable, so a clinician may review the full medication list and take a small skin sample for testing.

Arrange a medical review for new unexplained blisters, especially when they recur or spread. Keep the skin clean, avoid deliberately breaking blisters, use soft clothing, and protect open areas with dressings recommended by the care team. Do not stop prescribed steroids or immune treatments suddenly; follow the taper or monitoring plan.

Seek urgent care for fever, confusion, faintness, inability to drink, rapidly spreading redness, pus, severe pain, or blisters affecting the eyes, mouth, or throat. These signs can indicate infection, dehydration, or involvement of sensitive surfaces.

Ask how the diagnosis will be confirmed, how dressings and bathing should be handled, which side effects need reporting, and how treatment will be adjusted around other medicines or health conditions.