Don't clean or press notes is my suggestion every time.
To any virtually any collector above neophyte level, it is easy to detect processed notes.
They tend to be any or all of flat, stinky, oily, soapy, lacklustre, missing ink. etc.
A fold cannot be removed. Fibres are broken.
Even local pressing can be easily seen with proper light...
Just don't do it.
That said, if it's your note, you can certainly do whatever you like with it. What the hell, light your cigar with it (although smoking is bad for everyone)
Any yes, just as with lighting your cigar with it, a processed note's value will be affected greatly. It will be up in smoke.
Many collectors won't even buy a scare note if it is not original.