What should you know and do after an in-office laser treatment? Of course, you will want to follow the advice given by the dermatologist or aesthetician in charge of your treatment. But what type of advice will they give? Here are a couple of essential points to keep in mind as you prepare and plan: Most experts recommend avoiding sunlight 4 to 6 weeks before and after your laser treatment occurs. Your dermatologist will likely instruct you on what formulas are safe for you to use. Then, for 2 to 3 days after your laser treatment, only use skincare products approved to be safe by your dermatologist. During this time, your skin is at its most sensitive, and elements that might usually be OK could be too much for it during this vulnerable healing moment. So know what to use, what to avoid, and be prepared.