Infection and exposed cartilage in the nose after revision rhinoplasty -- will this heal on it's ow?

It is somewhat hard to determine if that is exposed cartilage or some heaped up nasal mucosa based on these photos. You need to be examined in person to determine what (if anything) needs to be done. Potential signs of an infection include: worsening pain, redness, swelling, drainage from the nose, and fever. Your doctor most likely did not receive your email so I would touch base with them by directly calling up the office. Best of luck!

It is hard to tell from the picture if there is any significant amount of cartilage exposed. It is preferable to see your doctor, soon, for a face to face and full exam.All the best,Talmage Raine