Suggest Methods To Remove A Scar Without Surgery

Hi my question is what type of doctor i need to see to have a scar remove not surgical, i went to see i plastic surgeon and he said he cant do anything becuse my scar is a little deep. i had a cyst remove twice about five years ago. he said that if he try he was going to have to cut my nervs. the scar is about an inch. i want the scar to look better. Thank you