Hi there! My daughter had an upper lip hemangioma that sort of extended up into the skin between her lip and nose. This was 10 years ago so the treatments were a bit different back then. She did about 10 months of oral steroids and then we waited until she was about 5 to see how much it would got away on it's own. It did fade quite a bit (especially from age 1-2) but after that the fading pretty much stopped. She had surgery at age 5 to fix up where her ulceration had been and then she had 2 laser treatments to take care of the skin under her nose. SO, it is a little difficult to say at this early stage what you may want to do with your son's hemangioma. Did it ulcerate at all? How large did it grow? Did it change the shape of his lineline at all? Is it extended into the skin or just on the lip? These are all questions that may affect whether or not further treatment is warranted. Nevertheless, it may just take some wait time to see how things play out. That is one of the hardest parts I think- is waiting it out. But sometimes it is the best thing. Every hemangioma has a "mind" of its own. Here's my daughter's album. You may find it helpful as a reference but your son's may not be similar.
Let me know if you have any questions!