Doctor Hardy and the Hysteria Machine by Florence Harper

Lady Beatrice Campbell has an urgent — and utterly unspeakable — need.

Despite the undeniable attraction between her and the dashing Lord Eric Greenwood, Beatrice’s innocence and strict upbringing send her into a fit of hysteria when he dares to ask for a kiss.
Mistaking her panic for rejection, Eric may soon turn elsewhere in his search for a wife — and an heir.
But a whispered recommendation from her seamstress leads Beatrice to the discreet office of Doctor Hardy, whose scandalous hysteria machine promises blessed relief to ladies in her condition. Will the good doctor’s prescription of pleasure and praise cure her? Or will it awaken something far more dangerous?
A sizzling tale of forbidden longings, burning passions, and a daring woman who learns to take her pleasure into her own hands.

Medicine has never been so scandalous.