Today we took Tyler to an allergist (he's been getting some rashes and hives sort of randomly for a while now) and they did a few tests for some common allergies... Unfortunately, his reaction to cat, dog, and peanut were what they called "severe". Good to find out, but not good results I guess. He's definitely been around cats and dogs, but what spurred on the visit was a neighborhood dog that brushed up against his face and he broke out with nasty hives on his cheek. No shortness of breath or anything like that, but they prescribed an inhaler just in case, and suggested that we keep him away from them if possible. Apparently it depends on the amount of "dander" exposed to, what the reaction might be, but he figured with such a strong "positive" to the test, that an asthmatic reaction would not be unexpected.
The peanut thing has us a little more worried, because apparently his reaction was severe enough for the doctor to prescribe an Epi-pen. Yikes!