Hello, My 11 year old brother has two cavities between his fifth and sixth tooth of both sides and a pimple like thing beneath the left one. He went to a dentist who said that we don't need to do anything and that they're milk teeth and they'd come out in some time. But the teeth still aren't even a bit loose and show no sign of falling. He's experiencing pain since yesterday and a pimple on his lip. Is this something to worry about? Or should we give him a crocin and wait for the teeth to fall out?