Psoriasis
That reverend wag, Sydney Smith, while looking throughout the hot-house of a lady who was very proud of her flowers, and who had a habit of inaccurately using a profusion of botanical terms, inquired of her, “Madam, have you the Septennis psoriasis?” “No,” said she, “I had it last winter, and I gave it to the Archbishop of Canterbury; it came out beautifully in the spring.” For non-medical readers it maybe noted that “Septennis psoriasis” is the seven-year-itch.