Infection is the No. 1 health risk associated with ear cartilage piercing, a problem that usually stems from improper aftercare. Minor infections can be treated with peroxide and anti-scarring cream. However, infections that aren't treated or other extreme infections should be addressed by a doctor.
Perichondritis is another form of infection, but it results when the cartilage becomes inflamed during the piercing process. This type of infection is characterized by rough, tough and inflamed skin tissue around the piercing. It can also result in pus, redness and extreme pain. Perichondritis should be treated by a doctor immediately.
Some people who get cartilage piercings experience an allergic reaction to the metal in the jewelry used. You can prevent this by using high-quality jewelry and being aware of your allergies. If you experience an allergic reaction to jewelry, your best option is to remove the piercing or replace it with different jewelry.