What should I avoid while using diabetic needles and syringes?

While using diabetic needles and syringes avoid holding or uncapping the insulin bottle with unwashed hands or plunging a needle into the bottle that has not first been wiped down with an alcohol cloth.

To prevent insulin from leaking out of the injection site, hold the needle at a 90 degree angle as you insert it into your skin, press the in plunger more slowly and wait a few seconds before removing the needle. If you still have problems with insulin leaking from your injection site often, talk to your doctor.