People think I’m obsessed with syphilis, and maybe I am. But it’s only because of my recent indoctrination into 18th-century history by aficionados of the period, such as Lucy Inglis, Adrian Teal and Rob Lucas. I can’t read 10 pages of a medical casebook without coming across a reference to lues venerea. By the end of the century, London was literally crawling with the pox.
And it’s no surprise. Sexual promiscuity was as much a part of Georgian England as were powdered wigs and opium. For a few pennies, a gentleman could pick up Harris’s List of Covent Garden Ladies, or Man of Pleasure’s Kalendar—a pocket guide to London’s prostitutes published annually starting in 1771—and peruse it as he might do a fine wine list.
For three guineas, a man could partake in the pleasures provided by Miss L—st—r at No. 6 Union Street, whose ‘neighbouring hills [are] full ripe for manual pressure, firm, and elastic, and heave at every touch.’  If three guineas were too much, one could always spend a third of that for a night with Miss H—ll—nd at No. 2 York Street, who, ‘tho’ only seventeen and short, is very fat and corpulent…a luscious treat to the voluptuary.’  And for those who fancied a woman ‘rather above the common height’, they could visit Miss S—ms at No. 82 Queen Ann’s Street East, who frequently attracted lovers of a ‘diminutive size’ who loved ‘surmounting such a fine, tall woman.’ 
The guidebook wasn’t all slap and tickle, though. Hidden within these pages were warnings about the dangers of sleeping with diseased prostitutes. Military men were cautioned against Matilda Johnson, since ‘it is thought by some experienced officers, that her citadel is in danger, on account of a quantity of fiery combustible matter which is lodged in the covered way.’ Some warnings were not so subtle (or hilarious). The guidebook alerts its readers to Miss Young, who had ‘very lately had the folly and wickedness to leave a certain hospital, before the cure for a certain distemper which she had was completed.’ The book ominously adds that she has ‘thrown her contaminated carcass on the town again.’ 
Yes, syphilis was ubiquitous in 18th-century London. Aside from abstaining or entering into a monogamous relationship with a healthy partner, there was very little one could do to protect oneself from the pox. Condoms, though available during this period, were rarely employed. When used, they were frequently reused multiple times, defeating their purpose as safeguards against contamination…