Do you ever have a patient with a rash you just don’t recognize? If you’re like me, it happens all the time and it can be hard to organize your differential. Michelle Lin (https://aliemcards.com/cards/rash-unknown) published a great set of differentials for the dangerous rashes that I think might make this less garbled and difficult.
AGE <5: Meningococcemia, Kawasaki, Viral Exanthema
Diffuse Erythema: Staph Scaled Skin, Toxic Shock Syndrome, Necrotizing Fasciitis
Mucosal Lesions: Erythemia Ultiforme Major, TEN/SJS, Pemphigus Vulgaris
Assoc. with Hypotension: Meningococcemia, Toxic shock Synd, Rocky Mountain Spotted Fever, TEN/SJS