you could just steralize the needle with a little rubbing alcohol then shoot it up if your that concerned about it.
none is going to “leak” into the barrel itself unless you have really really poorly made syringes in which case your in trouble anyways due to loss of sterility.
Apparently rubbing alcohol does not sterilize anything. It would be much safer, I think, to change the needle completely.
Ok if you want to be technical rubbing alcohol will only disinfect, not sterilize.
You could flame sterilize the needle, but thats alot of trouble.
easiest method of steralization is always to just change the needle.[/quote]
they are so cheap anyways and a new one is sharper and sometimes they are way sharper and much more comfortable, theres no reason why you should not change them.