Mire Beast bumps
From Tardis Wiki, the free Doctor Who reference
The Mire Beast bumps was an infectious disease, described as a "space bug", which Bernice Summerfield was once afflicted with. Its symptoms left her "howling for weeks". (AUDIO: Rhubarb [+]Loading...["Rhubarb (audio story)"])
Behind the scenes
This illness's name is an analog to chickenpox.