MR SMITH Mnemonic for Causes of Rashes on Palms and Soles M - Meningococcemia R - Rickettsia, Rat bite fever S - Syphilis (Secondary) M - Measles, Monkeypox I - Infective Endocarditis T - Toxic Shock Syndrome,Traveler (Dengue, Chikungunya, Zika) H - Hand Foot + Mouth, HIV, HSV #MRSMITH #Mnemonic #Rash #Palms #Soles #Differential #Diagnosis #Dermatology