Photo attached, taken from my local pharmacy copy. All you do is go to your chemist and ask to be seen under the minor ailment scheme.
Inspired by the other thread on things that should be free:
Paracetamol, hay fever relief, gaviscon, ibuprofen, Hedrin etc can all be prescribed by a chemist and dispensed. Obviously it's free of charge for kids. So no need to waste a GP appointment!