my question to is are talking about subcutaneous or intramuscular? either way it is very bad but even worse intramuscular. unless you are trained in sterilizing I would strongly recommend against it. there are only three kinds on bacteria. Sparely, bacilli and cocci. each kind have thousands of types of strains. cocci is the hardest to treat. there are strains out there today that the strongest types of antibiotics cannot cure. the staphs cocci can kill you and have you ever heard of the flesh eating decease? it can kill you in a matter of days. A staph infection takes sometimes two or three rounds of antibiotics to get rid of it. What is even worse is I can grow staph from your bathtub and mine. Some of these bacteria are on your skin right now. they are just looking for a way to get inside like The flesh eating decease which is what killed Jim Henson the Muppet guy and he picked it up from his home. It only takes one bacterium that is micro scopic to kill you. You make the decision if it is worth it to you . It is all a Numbers game.