I wouldnt risk puncturing the mesh ..as an alternative, apply heat. I had started a thread about that. In your case, with that mesh, i think heat applied would be safer. The hand warmers in between two layers of underwear. That is something you can wear day and night. The warmers last up to 18 hrs each. Hot hands is the brand.

I think the thread i started for that is called " turn up the heat. . ". There is a link to heat applied to testicles reducing T. Something like 2 weeks or so to see difference.