Day of Appearance of Rash in a Febrile Patient – Mnemonic

Very Sick Person Must Take Double Tablets
Very – Varicella (day 1)
Sick – Scarlet fever (day 2)
Person – Pox – small pox (day 3)
Must – Measles (day 4)
Take – Typhus (day 5)
Double – Dengue (day 6)
Tablets – Typhoid (day 7)