My daughter has 流"龍" a few times, she is now 4 months old but still not completely healed.
My son had 卡介苗 when he is 2.5 yrs old in HK (no need to get this shot in Canada). The place where he had the shot swell up so much, so scary, size of a dollar coin! After 流"龍", then it finally healed after 3 months!