Re: Questions re: Frenuloplasty aftercare...
Since it will be difficult to not masturbate for six weeks, I would wait until all the scarring has formed, and the stitches dissolved. Then, very gently see how much you can move your foreskin without pain or any obvious damage occurring. Then just play it by ear... I would try not to make it a long drawn out affair, just quick gentle relief!
If in doubt, you could always ask your surgeon, maybe you are going back for a checkup - this would be a good time to ask?