A student has warned her friends to tread caerphilly after she was tormented because of her fear - of CHEESE. Katie Weston, 20, has suffered from the unbrielievable phobia known as Turophobia for as long as she can remember. The second year English literature student from Cardiff claims her fear is so damaging, she is left gagging at the smell of the dairy product. Pretty Katie has to tread Caerphilly because if she ever inadvertently tastes it, she has to run to the toilet to spit it out and then brush her teath.