Hi, Someone introduce me to his dermabrasion home device saying it is good treatment for skin. The device looked like a pin and has very fine needles that go into the skin (probably 2-3 mm long). it was painless as the needles was moving in a very high speed. I've tried it on my arm for like 10s after he showed me how it works on his arm. Can I contract infectious diseases (e.g HCV or HIV) by trying his device if he was HIV or HCV positive? Thank you