Changed response to TB test

Hi - I have asthma for which I take Flovent 110 twice a day, with more if I am having symptoms. I understand the steroid effect can complicate the reading of the PPD test? I am 60 yr. old and have never had a positive PPD - in fact, it is usually impossible to even see where it was put when time to read it. I had a PPD test planted nine days ago. It was read as (and certainly looked) negative, 72 hours later. However, about a week after the test, I began to see red dots where the points went into the skin, which never happened before. Each of the days since then (about three) the spots have grown more visible. Now they are merged and you can feel that they are very slightly raised. No blistering.
What's up with that? I work in a diverse, low-income community but am unaware of being exposed to an active TB case. Last thing: I am allergic to rabbits, do they use anything similar to rabbit serum to make the test?
What should I do now ... ?