[Lily]

In the bad old days before anyone was vaccinated against TB they did the test to see if you reacted (i.e. to see if you carried TB). I remember as a child having an immigrant friend whose siblings and her reacted like this. Some of the staff at the school reacted alarmed which was ridiculous, you will react if you have had the vaccination previously. After a quick march up to the school and a stern talking to by her father the offending staff were educated :lol:

In your case yes there may have also been some reaction at the injection site owing to allergy.

love
Lily