Ideally you shouldn't use them for finger pricking because the alcohol will effect your blood sugar results. If you have to use them, say you're out and can't wash your hands, you must ensure that your fingers are completely dry before testing. Sue xx
Alcohol removes your skin oils and dries out your skin. Using them regularly is not recommended. Doing it occasionally is not such a big deal so long as you allow the alcohol to evaporate before testing. But then you would also want your hands dry if you washed them with soap & water before testing, no?