15 month old with Hemangioma?

my second baby had one that started on the back of her arm. it was raised, and smaller than a raisin, and i was worried it was gonna get bigger. her doc told me to let it be, give it some time, and we'll see what it does. it went away on its own in about 2 months. so listen to the docs, if they think it'll go away, than it prob will. don't worry too much about it.