Medicinal Leeches Not Old Hat

In the olden days leeches used to be the prescribed course of treatment for any and every ailment. If you had a cold they got out the leeches, if you had gout they bled you, if you'd fallen on your behind and bruised your tushy it was leeches again. It's not like that now, but medicinal leeches still have their uses: Have You Got Any Leeches For This?