DD went for egg allergy test at about 11 months. They did a skin prick test, which she cried over of course, but was soon distracted. I think it is easier when they are babies, as they forget about things. there was quite alot of waiting around, as had to see nurse for weight etc, then doctor to discuss reason for referral, then wait to see nurse for test, then wait to see doctor again for result of test. Was there for hours!
She was allergic, so we went back when she was about 2 and a bit to be retested, and that time due to some mix up, the nurses who could do skin prick tests weren't there, and she had to have blood test. They gave her aneasthetic cream first, and DH who took her fed her chocolate buttons during the test! Again, cried, and as older didn't forget about it as easily, but certainly not as bad as Misty9 experienced!
I was initially annoyed they has made her got through blood test, especially as had to wait weeks for results, but I am told they are more accurate. And it turns out she has grown out of allergy, which is great.
Unlike savoir faire (and several others I've spoken to) they would only test for egg, which she had had a suspected reaction too, which is a shame as at 3 1/2 we are still too scared to give her peanuts in case she is allergic! They did however take quite an interest in her eczema, which we hadn't expected. They also referred to a dietician, which was pointless - appointment came through months after her diagnosis, and basically consisted of them telling me she shouldn't eat eggs,and what eggs are , which I'd worked out myself by then!