You might consider testing from the ear lobe. We find that this is a good way to test at night so as not to disturb Dave, aged 8, while sleeping.
There aren't so many nerve endings in the ear so it doesn't hurt at all. Just set your pricker a bit lower as it is softer skin than the finger.
We think the readings are accurate and I have checked them and compared with finger pricks...also its unlikely to have sugar or food on your ear so its a cleaner surface to test from.
Hope this helps.