What is this on DC’s foot??

[AlexaFeedTheDog]

DS has had this on his foot for ages. It doesn’t feel particularly rough, no black dots so I don’t think it’s verruca’s and he says it doesn’t itch. There is also a similar looking patch near his heel. Any ideas?

Mosaic warts?

Some sort of athletes foot?

I don’t think it’s athletes foot. It doesn’t seem to match the pictures I’ve goggled. Could be mosaic warts. He says it doesn’t hurt though?

It would be sensible to take him to have it checked and treated.