Sometimes, it turns out, it actually is Lupus. At least it is for 15-year-old Daisy (Alice Sykes) who, in Melanie Spencer's Responsible Other, has the disease whose obscurity and mass of possible symptoms made it a weekly suspect for Dr House. Only a couple of years after her mother's death from cancer, Daisy has been diagnosed with the disease that turns the immune system against itself, and in her case is making kidney failure a real possibility. Weekly chemotherapy could help, but her father Peter (Andy Frame) is struggling to stay afloat as a single parent, and the trips from Northampton to St Thomas' Hospital would mean missing more work than he can afford to. In desperation he turns to the sister-in-law he hasn't seen since Daisy was a baby: Diane (Tricia Kelly) is a recluse with a history of mental illness, and the thought of accompanying the niece she barely knows to London is terrifying to her.
