Experimentally, both imiquimod cream and interferon injections have effectively removed basal cell carcinomas with minimal scarring. These treatments may be available from your doctor within the next few years. Whatever the chosen treatment, BCC can nearly always be cured. BCCs can occasionally come back at the same site, but they can be treated again safely. If you have had one BCC, you have an increased risk of developing another one.
Early treatment means easier treatment, and less scarring.
Protect your skin from the sun at all times. Arrange a complete skin examination from time to time. Ask your dermatologist or GP to check any persisting or growing lumps or sores.