Section 88 permits you to drive without a licence if all of the criteria listed here apply - www.gov.uk/government/publications/inf1886-can-i-d...a This includes the following: "You meet the medical standards of fitness to drive. If you have a medical condition and have been told not to drive by a doctor or healthcare professional, you should not do so."

It is important to note that your GP provides an advisory role and the decision to grant you a licence or otherwise rests with the DVLA, but in order for section 88 to apply you must have an application for a replacement licence with the DVLA. The specifics of your medical condition may affect your circumstances assuming the six month period has expired, but ultimately it is important to consider that if you choose to drive under section 88 and are stopped by the police or involved in an accident, you should assume that any guidance provided by your GP regarding your fitness to drive and decisions made by the DVLA will be examined.