Can CO2 laser resurfacing be repeated? If so, how often.

In most cases, the answer is yes, you can repeat CO2 laser treatments to maintain your positive results. However, the frequency will depend on the depth of your previous procedure and the level of correction you hope to achieve. If you had a fractionated treatment, this process stimulates collagen production by creating small channels deep in the skin, leaving surrounding skin and tissue untouched. This process will likely need to be repeated. 
Ablative laser treatments remove the outermost layers of skin to reveal softer, smoother skin below. This procedure requires a significant amount of recovery time afterward and the results can be quite dramatic. However, the procedure should not be repeated as a general rule, as this could cause excessive damage to the skin and tissue. I recommend scheduling a follow-up with your provider to determine whether your skin is ready for another treatment. Make sure you are working with a board-certified dermatologist to ensure your treatments are all safe and as successful as possible. 

The ability to repeat your CO2 laser resurfacing will depend on numerous factors, including the depth of your procedure, the sensitivity of your skin and the outcome you are hoping to achieve. In most cases, this treatment can be repeated annually or even more frequently to maintain your positive results if it is a fractionated laser like Fraxel Repair or Active/Deep Fx. For more advanced problems, a fully ablative CO2 resurfacing is often done. This is a deep laser that takes up to 10 days to heal but lasts many years. It is often not repeated for 10 years or longer. Make sure you work with a board-certified dermatologist who can advise you on the safest and most effective treatment plan for you.