I recommend taking a multivitamin to strengthin your immune system. It probably won't ease your symptoms, but having a strong immune system is very important.
I have been away from the board for a while and do not remember what symptoms you have but a lot of people have had relief using homeopathic meds that treat yeast. I do not know what is in the UK but here there is something called AZO Yeast.
Hang in there. Sounds like you are on the right path if you are waiting for an appt.