Prescriptions for over-the-counter items cost the NHS millions each year; in 2015 paracetamol prescriptions alone cost £87.6 million. Mark talks to Paula Cowen, medical director at Wirral CCG, one of a growing number of Clinical Commissioning Groups that are asking GPs to restrict prescribing of these items, and to Andrew Green, a GP and the prescribing policy lead at the BMA, who has reservations.

Virtual Reality is being harnessed to help people recover from serious brain injury following accidents or strokes, and in conditions like Parkinson's disease and dementia. Mark visits a clinic in Salford where they're using virtual reality in neuro-rehabilitation.

And treating sore throats with antibiotics. Sore throats are common accounting for 1.2 million GP consultations every year in England alone - and they affect many millions more who don't see their doctor. Most are viral and self-limiting, but around 1 in 10 are caused by a bacteria and may benefit from antibiotics. The tricky bit is telling the difference between the two but a new pharmacy-based test and treat initiative may help. Mark speaks to Peter Wilson, one of the authors of the pilot study, and Margaret McCartney is on hand to examine the evidence.