Is it possible that something at their home upset your asthma? I know that my son can not be around smokers at all or his asthma is terrible so any friends houses he wants to go to I have to see if they smoke there because he can't go play there if they do.
Was there anything else there that might have triggered this? Have you talked to your doctor about getting a dog? I know nothing about being allergic to dog saliva, so I can't offer many suggestions on that.
Good luck if you decide to get the puppy. I would have a back up plan in case you are allergic. It could be that once the puppy get a little older and you are washing it in what you are not allergic to and it has been in your home that you won't have any reactions to it, but it is hard to say for sure. If you had a family member willing to take the puppy if it doesn't work out or something so you would know it has a good home.
__________________  It's raining Yorkies here! LOL Teek  ,Rowan  , Raksha (Grand Puppy)  , Raelyn |