What is the most important reason you should not try draining an abscess by pressing on it?

You should not try draining an abscess by pressing on it because it may spread infection to a deeper tissue. An abscess is a collection of pus that has built up within the tissue of the body. A skin abscess can be as a result of a bacterial infection that occurs when a bacteria such as staphylococcus aureus enter the body through a hair follicle or through wound or injury that has punctured or broken the skin. The abscess is drained using a needle, an incision is made on the skin over the abscess, then a thin plastic tube called drainage catheter into it, then the pus is drained.