I've had this problem and here are the things that worked for me, you can get a cream called Mederma at any drug store this works great on new ones but it's costly.
I found what worked the best for me was an ointment form GNC, called E-Ointment, it runs about 5 to 6 dollars for a two ounce jar and it lasts a long time. I just dabbed it on twice a day and in about two weeks it had done wonders. It's organic which is what drew me to it. Nothing will get rid of them completely but i have made mine almost unnoticeable thanks to these things. I hope they work for you.

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"I've seen a look in dogs' eyes, a quickly vanishing look of amazed contempt, and I am convinced that basically dogs think humans are nuts." - John Steinbeck