Chronic ear infection are the story of my life and have been my main health problem. Are you anywhere near London? Some of the best care in the world is here. A head surgeon here actually restored my hearing after a life of chronic ear infections. Call them and see what can be done. They can also recommend an ENT specialist in your part of the UK if you are not near London. British ENT specialists are far better than similar specialists in the USA (where I live now) IMHP. If you can track down a Dr. Dennis Choa, please do so if he is still practicing.
My experience is that your local surgery is not equipped to handle ear infections like this.
You sound like you have a middle ear infection that could be spreading to your mastoid region.
Royal National Throat, Nose, and Ear Hospital