I'd talk to the doc, but I think I'd definitely wait for the reaction to be gone before testing. When we did it, K got an "all clear" from the doc but the process was pretty easy. They did it on her back and the worst part was the pricks (of course) but then she had to lay flat on her tummy for a few minutes to let the liquid/allergen get into the pin pricks. K didn't cry with the pricks (didn't like them, but didn't cry) but really didn't like having to lay flat. I think if I did it at this age, I'd probably lay on my back and have her lay tummy-to-tummy and have DH try to keep her still. At least I could make silly faces at her and give her something to do! The allergy doc that we saw was really good and specialized in children so she had a lot of tricks up her sleeve and oodles of toys too.
Keep us posted!