During my consult, in addition to a verbal guideline, I give everyone an aftercare instruction sheet that I wrote up (and I have a stack of them in a conspicuous place for them to grab one later on if they want to, as well as on my website).
Basically, I tell people that it’s a minor skin wound and the most important thing is to keep it clean afterward. Don’t touch the area unless you wash your hands first and if you get it dirty, just use mild soap and water, and that if they need to apply something to protect or make the skin feel better, aloe, witch hazel, etc are perfectly fine. IMO, the more you try to force the skin to heal faster, the more damage you are likely to cause.