Varicella (Chicken Pox)
Description: Rash that starts on head & trunk; continues to spread for 35 days; resembles dew drops on rose pedals; erythematous macules to papules to vesicles
Etiology: Low fever 12 days before rash; infectious 4 days prior to when lesions appear until crusting (~ 5 days later)
Rx: Oral antiviral therapy

Source: From Barankin B & Freiman A (2006).