Scar treatments or products? Anyone?

I have accumulated a huge number of scars on my arms and it has gotten to the point where I cant even wear a t-shirt let alone a tank top. Summer will be here soon and I don't want to worry all summer about making sure my arms are covered up and making up excuses about why I can't go to the beach. Sometimes when it's really really hot out I don't even go outside because I have to wear long sleeves and I just cant handle the heat. I have collapsed a couple times in the summer when I was out on a hot day and I was waay over dressed, but I didn't really have a choice. Does anyone know of any effective treatments or products to clear up scars or make them less noticeable? Any help would be greatly appreciated!