swelling and lump care after vaccination?? how much time to be normal?

A. Ma’am if you keep a cold sponge on that area that is going to help in settling down the problem that there after every time you get an injection done to the child make sure of that and then you can apply or tube medication to settle the issue of swelled up in that area and also you can give paracetamol if there is pain without fever also you can give it