Mam my baby is having pimple like this in his left side shoulder. What is this, any problem, plz check in the photo and let me know. He is 34 weeks 2 days premature baby. As on today he is 52 days old baby. BCG vaccine has given to him on his birth only on 17-02-2020. Next is on 17-04-2020. Plz check photo and let me know y is this happen mam plz