There has been widespread coverage in the media this week about Great Ormond Street Hospital (GOSH) patient Millie Field.
Millie was offered a pioneering drug treatment at the hospital, which dramatically reduced the size of a potentially lethal birthmark which was restricting her breathing.
The drug Millie was given was Propranolol, which had been shown to successfully treat the condition in a clinical trial in France.
Doctors at the hospital had previously diagnosed Millie with a haemangioma, a birthmark caused by a benign tumour of the blood vessels in the skin.
Jane Linward, clinical nurse specialist for Dermatology at GOSH said: “We are delighted to see Millie is doing so well.”