Staph aureus causes
Impetigo is divided into two types:-


Non-bullous impetigo (Impetigo contagiosum):- Caused by staphylococcus aureus and streptococcus pyogenes.
Bullous impetigo:- Caused by staphylococcus aureus.
Erythrasma
Chancroid
Acne vulgaris
Bullous impetigo