Strawberry birthmark treatment

[sommean1]

Hi,
I am hoping somone can have a look at my son's birthmark & advise what course of action you would recommend.
He is 14 weeks old and his mark seems to be growing quite quickly.
It is pushing forward his earlobe and his earlobe is enlarged where the mark covers it.
Would you expect a good cosmetic outcome should we let it run it's course, or to see a specialist to consider treatment?
As it is on his ear, we want to follow the course that would leave the least scarring or loose skin, but also want to consider action should it not be resolved by school age.
I have read about all the treatment options - beta blockers, laser etc. Would any of them be appropriate in my sons case?
Thank you for any advice you can provide.
Anne