Upper ear cartilage piercings can take anywhere from 4 to 12 months to heal fully. During the healing process, it is important to keep the piercing clean and dry. You should also avoid sleeping on the piercing and touching it with your hands.
If you are considering getting an upper ear cartilage piercing, be sure to do your research and find a reputable piercer. A good piercer will use sterile needles and jewelry, and they will be able to give you advice on how to care for your piercing.