DS3 has had a wart on the back of his ring finger for a good couple of years. About a year ago it went black and fell off, but has grown back bigger. He's now got another tiny one on his little finger and on his index finger but these seem to be growing in size quite quickly. They have black dots in them like verrucas.
Is there anything I can do to treat them? They just seem to be getting bigger and bigger.