The Janus Thickey Ward for those suffering from severe spell damage is located on the fourth floor of St. Mungo’s.
One of the healers working there was Miriam Strout. Patients include Gildeory Lockhart, Frank and Alice Longbottom, Agnes, and Broderick Bode (OP23).
Janus Thickey was a wizard who faked his own death by Lethifold attack in order to shack up with the landlady of a nearby pub. The fact that he lends his name to a ward for severe spell damage suggests that the reaction from his wife and children after discovering this ruse was fearsome indeed (FB).