Thanks alot for taking you're time to type all that info and find the links! I checked her over last night and her dandruff seems to have cleared up alot, although I realise the fungal infection would still be lurking. I will check tonight if she is warmer than the other pigs, her skin does seem quite pink but it's hard to tell if it's just where she gets injected twice a day because the only white area to compare to her ears if the area she is injected into. I have before though been grooming her and a couple of hairs have come out with a peice of skin on the end. So I defiantly think she may have a fungal infection.
She doesnt seem to have any symptoms in the lower back, it's mainly around her ears. She isn't in any places with showers/washers/dryers but I definatly know that sometimes I've woken up to my windows with wet on the inside, I think I will get those checked out too because it doesnt happen in the other rooms.
I run out of disinfectant and haven't brought anymore since they moved into their C&Cs because the pee rarely touches the tarpauling.
My vet is definatly prepared to learn, he owns Guinea Pigs himself and really cares about his piggy clients, he got really into Tallulah having diabetes and spends ages learning more to help us. I will see about ordering some Gorgeous Guinea soon because I don't like Head and Shoulders especially near Guinea Pigs since its tested on them - poor Tallulah probabaly thinks she lives in a lab though will all her injections and vet trips
Thanks again I will look into getting her bathed asap in GG shampoo, the coconut neem and the other neem mixture too.