<unk>  is usually diagnosed based on its appearance. It generally appears as honey-colored scabs formed from dried serum and is often found on the arms, legs, or face. If a visual diagnosis is unclear a culture may be done to test for resistant bacteria. Differential diagnosis Other conditions that can result in symptoms similar to the common form include contact dermatitis, herpes simplex virus, discoid lupus, and scabies. Other conditions that can result in symptoms similar to the blistering form include other bullous skin diseases, burns, and necrotizing fasciitis.
Impetigo
Smallpox
Bullous impetigo
Herpes labialis
Contact stomatitis
Shingles
Vertigo
Bovine papular stomatitis