When I began my self testing I’m sure I was told to just wash my hands before the finger stick and to not use alcohol pads. Use of alcohol pads could contaminate the sample. I am currently being treated for endocarditis. One of my doctors said the finger stick is a possible way the infection was introduced to my blood stream. He said that as long as the alcohol dries first there should be no problem with contamination. What were all of you self testers told? Do you use alcohol pads?