there is no reason for a bandage after a shot from a needle that small... a few seconds of holding on a cotton swab will stop any bleeding for most people, but I see dozens of idiots every day with sleeves rolled up to display their virtue bandage.
not even the plain "flesh" tone ones, but bright colors or Disney characters. fucking retards.
thus ends the rant
Bandaid more than 5 mins after shot = mask
Both are completely useless except to signal you are scared of the virus with a 0.3% chance of killing you.