From Willsfca's photostream (a Creative Commons license):
"Halfway through: After about 20 little shots of allergens. There were 42 total. I didn't think they would shoot them one at a time, but they did. This was only for the indoor allergens. There's another round later for the outdoor ones."
"Dust mites and cats: apparently i'm allergic to both types of dust mites and cats."
Diagnosing Allergy: A Short Review
Procedure Guide: Allergy Skin Prick Testing
Practical guide to skin prick tests in allergy to aeroallergens (free full text). Allergy, 2011.