Post-Derm Visit Update
As expected, the recommendation on all three Hs was to wait and see before providing any kind of treatment. In all likelihood (and with some luck), they will all go away on their own.
Not surprisingly, we got a text-book definition and description of Hemangiomas, despite the fact that the derm sees them "all the time;" clearly, they are not a specialty of this doctor's practice. From what I've gathered on this board, this is typical.
Happily, the H about which we are most concerned -- the small one on his forehead -- has increased in size but very slightly and very slowly. We're keeping our fingers crossed that it will not develop much further.
Thanks for all the advice and support.