Swab the area very well and slowly penetrate the 18g pin directly into the abscess. Keep pushing the pin in and gentaly aspirating every few millimeters until you hit the cyst. Slowly aspirate the cyst. You should be able to draw out the initial volume injected and then some blood and puss. You can expect to drain out 3ml from a 2ml injection 4-5 days post injection. This will give your immune system and the anti-biotics the best chance of fighting the infection. Always complete the course of anti-biotics even if the symptoms and swelling subside.
With the numerous points we have to choose from for our steroid injections most will find the glutes and lateral (side) deltoid head to be the most comfortable and convenient points of administration. Injection sites such as calves and traps are highly warned against; although in terms of adequate injection sites they are fine, they can produce a fair amount of pain in the individual. No matter where you choose to inject always practice sanitary methods; do not reuse needles or syringes, clean the area thoroughly before injection and always sterilize with alcohol beforehand.