Hello girls. When my son was 4 months old, we took him to an allergist…

Hello girls. When my son was 4 months old, we took him to an allergist and during the examination she besides allergy on the cheek pointed out the place of BCG vaccination that it should have long ago been sealed and stopped bleeding and said that the place is not healing because of the allergy. After came home I googled and read that scar appears in 6 months. And it can last until a year and this is normal. Please share how many months did your children's scar appear on the shoulder?