Tight shot / surgical

[illuzion30]

I have scene in mind where the character is using a razor blade to cut into their head near the temple (shaved head) looking for something (probing with fingers and such) but not completely carving chunk out (character will sew it up when finished). I'm planning on a really tight shot. I figure liquid latex might make it a little tough on a tight shot since the lack of texture would be apparant. Subsurface veins/scattering, skin texture, etc seems like it would be tough to fake. Just thought I'd probe for some ideas.

Thanks.