Lol my mum just boiled the syringe up in a saucepan of water every 7 days for about 10mins. That was the only sterilisation that was done. The syringe was kept in a tupperware container filled with industrial methylated spirit just to cover it. Every morning my mschoolsd the kettle and the syringe was lifted out of the tupperware and submerged in a Pyrex dish and boiled water poured over it. I just rinsed the syringe once assembled with the boiledwater and flushed it a few times. I then proceeded to fill the syringe from a vial of insulin. It took about 5mins and that included the injection which I did every morning sitting on our staircase. Eat breakfast .....2 weetabix and 30mins later, off to senior school doing a 1 mile walk carrying a heavy bag with text books, snacks to eat mid morning and then home at lunchtime to eat a sandwich or have some soup and then back to school again.