Other than pemphigus, Nikolsky's sign is positive in:
“Nikolsky's sign” is positive in:

Pemphigus.
Familial benign chronic pemphigus (hailey-hailey disease).
Recessive dystrophic epidermolysis bullosa .
Familial benign chronic pemphigus
Hailey- Hailey disease
Epidermolysis bullosa
All of the above