well if needto isnt gonna give any advice, the man is gonna do it anyways without proper knowledge and therefore make his risk of infection even greater
bro.......never ever ever reuse a needle.....i learned this the hard way after being flamed by the guys on this board for asking the same question...
thereotically you could reuse a needle, although not safe....
if u must.....put some rubbing alcohol into a glass and let the needle sit in it over night......when ur ready to use it just take it out with some latex gloves and let it dry by itself, do not dry the alcohol off with a tissue paper or towel......
i would say just go to the pharmacy and buy an insulin 1cc 1'' needle for a dollar opposed to reusing your other one......its safer...but make sure you inject into your delt if using an insulin needle to prevent abcess