It's early days.... too early to start thinking about more surgery.
1. Scar massage -- massaging a scar firmly helps breask down scar tissue and will lead to a flatter, softer scar.
2. Sun block - prolonged exposure of fresh scars to the sun can make these scars turn permanently red or dark, making them even more visible. Put sun block on the area before leaving the house.
3. Keep the area clean and wash it gently (once or twice per day) with a skin-friendly soap like Dial.
4. Some scar treament products are better than others. In my experience, Mederma is no better than plain petroleum gel, but if it's working for you that's great. It certainly shouldn't cause you any harm. Vitamin E is recommended by a lot of people, but again many studies recommend NOT using it as a scar treatment because it can cause contact dermatitis in 1 in 3 people and actually doesn't improve scar healing (see http://www.inviciblescars.com/vitamin-e-scars.html).
5. Wait at least 6 months (preferably 1 year) before considering anything more agressive than a topical scar treatment (like scar revision). It takes time for scars to really mature. You won't know what the final scar will look like until then.
Hope that helps. Good luck!