It is normal for pus to appear after BCG vaccination. When the pus appears, we need to do the following care: 1. When the BCG vaccine is red and swollen, no treatment is needed; 2. When the BCG vaccine starts to appear and the pus does not break down, no treatment is needed, we need to pay attention not to get the wound; 3. When the pus breaks down, it is also a normal reaction process, no need to be nervous, use sterile cotton balls to dip the local area, keep the local area breathable and wait for the scab; 4. 5, do not need to cover with band-aids and other things; 6, can be normal bathing, normal milk, pus broken during the bath to pay attention to the pus dry after the good.