| Have you ever had a dog before?  If not, there is chance that your body is adapting to the presence of dogs and will eventually stop reacting.  I had never lived with cats, and upon moving into a household with a cat I found that I was extremely allergic to it -- for a couple of months.  Then I was fine.  Although I didn't go as far as asthma, that's sure.  Hives, yes; asthma, no. 
 Keep doing everything you're doing, and follow the good advice given above. Time will tell.
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