DDx ⬇
- Pemphigus
- Bullous pemphigoid
- Drug eruption
- Erythema multiforme major or toxic epidermal necrolysis
- Bullous impetigo
- Contact dermatitis
- Dermatitis herpetiformis
- Cicatricial pemphigoid
- Paraneoplastic pemphigus
- Linear IgA dermatosis
- Pemphigus foliaceus
- Porphyria cutanea tarda
- Epidermolysis bullosa
- Staphylococcal scalded skin syndrome
- Herpes gestationis
- Graft-versus-host disease
- Disseminated Vibrio vulnificus (cirrhosis, seafood or seawater exposure)
- Ecthyma gangrenosum (neutropenic, pseudomonal)
Related DDx ⬆