I have done this! When I wasn't totally educated on the potential dangers of shooting crack, with lemon juice/water as a solution to break it down, as it is not water soluble.. I missed like half my shot one time, out of the small handful of times I tried this, and boy was it scary! I had around 80 units, about 40-50 of lemon juice with crack, and around 30 units of sterile water to dilute the acidic solution.. and well all was going well at first, I hit one of my "go to" veins, as I had RARELY ever missed there before, and knew how dangerous it could be to do.. and registered in vein, which at first I was, so injected the crack solution in my 1ml(100 unit) rig, and when it got to about the 30 or 40 mark on the rig, and I was literally SLAMMING that shit, as fast as I could(bad idea!) to get the best possible rush, I felt pressure, like you feel when you have missed a vein/punctured through the vein after registering blood, and began to feel the worst burn and stinging feeling I have ever felt in my life.. and I just kept pushing like an idiot, way too hard/fast on the plunger, too fast to really pull out an find another vein before shooting the whole ~35 units through the other side of my vein and missing... The pain became excruciating where I missed, and soon turned my whole entire arm dark red, and the site swelled up, and began to become purplish red!!! I WAS TERRIFIED! I was already paranoid as hell from smoking crack before hand, and that didn't help, so I stared at my arm like a hawk would its prey, and was just watching it become worse and worse looking, and feeling it get increasingly more painful... I was afraid to tell my parents who were in the other room, because I didn't want to get them all pissed off at me, and everything, and admit to them what I did, again because of the paranoia I was experiencing I was 10x more scared to tell them.. SO I sat there, for hours, washing the injection site, over and over with hot soapy water, then applied paroxide the repeated numerous times... and to my surprise, the redness/purple hue went almost completely away, the swelling subsided, and by the next day(probably 12 hours after this happened), you couldn't even tell anything had happened.. I got lucky, as I looking at my arm being purple, totally thought it may have to be amputated! It was terrifying, and I will never shoot crack again, at least not with lemon juice!!! Scary shit... Original Poster: Don't be like me, when I missed, and got very lucky as it just subsided on its own, go to the ER! Seriously, missing a shot of crack, or injecting it into an artery/nerve(possibly what happened) is very very bad!! Be smart, and see a doctor asap!