It measures 10cm by 14cm. It looks like a dressing but it is more than that. The patch packs an analgesic – a pain-reliever – that many sufferers of chronic pain rely on to help them function day-to-day. Using it narrows the divide between living and existing, they say.How well Versatis works was evident from the number of people ringing the Joe Duffy programme over several weeks, distraught at the news that the patch was no longer available free or partly paid for under the three community health schemes.