Procol Harum — Robert's Box lyrics

Doctor where's your remedy?
I've got enough to pay the fee
Can't you see I'm awful sick?
I'll pay you well to do the trick
[ Lyrics from: http://www.lyricsty.com/procol-harum-roberts-box-lyrics.html ]
Doctor where's your magic box
There's no one here to count the cost
Name your price and make the sale
There's no-one here to tell the tale

Doctor please don't lock your door
I've never troubled you before
Just a pinch to ease the pain
I'll never trouble you again