Hope, I get that too. It is sort of funny but very strange. I had a single mastectomy so I have one natural breast & nipple and one implant reconstructed breast with no nipple. (I replied to this post because the itching problem happens to some of us whether we've had reconstruction or not).
If it has been many years since a person was infected with TB, his or her initial skin test may be negative, because of waning immunity. Subsequent tests may be positive, however, because the initial tuberculin placement stimulates the immune response to the test.
Sometimes this vaccine can make your TB skin test positive. However, medicine for Inactive TB should still be considered even if you had the BCG vaccine in the past. It is more likely that your positive TB skin test is from breathing in TB germs from someone sick with active TB than from your BCG vaccine.