I got my septum pierced a week ago as the jewellery i had in was too small to clean. now my nose hurts and it has dark yellowy redish pus? help!

Remove it: Body piercing is not approved by any medical profession that I am aware of. You are getting an infection and you need to see a Dr. To get it cleaned so it heals properly.

Septum abscess: is a very common complication after the septum piercing. The diminished blood supply to an area with cartilage, along with an opening in the surface leads to bacteria viruses penetration and infection. The septum is tooo close to the brain entry and other vital organs. You can be "cool: without risking your life. See your PCP for evaluation and treatment..

Staph Infection: Your nose has many germs, some good and some bad. Staph Aureus can cause serious infections and may need a professional consult. Remove the jewelry, apply warm moist compresses and try some Bacitracin ointment locally. If it does not improve, you get a fever or it worsens see your physician. Be leery of piercing unusual places. Good health.