@thewarrior,
{Re:She grabbed the cotton ball with her bare hand and used it to swipe the location and then turned it over and used the "clean" unbloodied side(which she had just touched with her fingers) to press against the injection site and then tape it down.}
Although that isn't a good practice by the person drawing the blood, you shouldn't have to go to a VD clinic. Most immune systems are strong and healthy enough to fight off most bacteria that enters our bodies and besides our bodies have what's called "flora" or bacteria in healthy numbers that keep our systems working. (hugs)