Trish,
Our paed organised it but I'm sure if you asked your GP he could make a referral for you. Allergy testing is available through most large public hospitals. The paed filled in a form and faxed it through. THen we phoned for an appointment but there is nothing to say that you can't phone first and take your referral with you. Up this way, it was done through the respiratory unit. Not sure about anywhere else. I'm guessing places like Westmead and Randwick kids would have their own unit.
The actual test was a scratch test, where they drew a grid on Ivy's arm and placed different things withing the alotted space. Then they made a tiny scratch with the same sort of needle that they use for the baby's heel ***** test, so that the allergen and the skin make contact.
Ivy got small reactions to everything they tested. The thing that made the nurses run around in circles though was her histamine panel. With this one they tested to see what her natural histamine did when challenged. It went wild and gave her a score of 6/6, which, they tell me is not good. So that was it in a nutshell (pardon the pun). While her reactions were small (and what I would consider intolerences more than anything) the person testing said that because her histamine levels were crazy, you just never could anticipate the level of reaction that her body would produce, thus the epi pen.

Good Luck Trish, I hope that you get some answers. Thanks for answering my question re; Tehya being sick and the connection for you. It all helps.
PS, The paed told me that if the child has allergies even BF won't protect them, as was the case with Ivy but it is still the best option for sicky kids! Ugh, if only I knew that before I weaned her!