Before answering your question I must tell you that all scar marks are permanent and one can not get rid of the marks. However, they can be converted into lighter, finer scars
which easily blend in the surrounding skin and are apparent only on close inspection.
During early stages of scar formation, some scar modulation agents (popularly available anti scar cremes) can be used. These if prescribed should be started immediately after healing is complete and latest by 4 weeks of healing. If used after that period of time they are not much useful.
As both the scars are more than a year old and unlikely to improve with cremes, you should plan a scar revision surgery. It is a minor procedure during which your bad scars will be removed to produce one thin scar. Then, you should use scar modulating cremes to further improve the quality of this scar.
Dr. Sharad Mishra