Hemangioma/Strawberry mark 🍓

Hi ladies, I have a 6 month baby who has a Hemangioma beside his head, next to the ear which seems to be growing. It appeared as a red blemish when he was 7 days old and now it’s the size of a raisin. I’ve been to the Drs several times and each time they advised it’s harmless and will shrink. Has anyone had any experiences with this and from what age did you notice it disappearing? Many thanks x