I pulled off what I thought was a piece of dirt from my younger son's cheek. I had to pick at it to get it off, but it was just a tiny speck. After I took it off, I noticed that the "piece of dirt" had tiny legs - must have actually been a tick. The tiny head is still embedded on Grant's cheek. I can't pull it out without making a little divot in his cheek, and he's really freaking out. Any ideas on how to safely pull out the head? Thank you.