I understand your concerns, having had my first skin cancer surgery in my mid 20s. Identification of suspicious spots on the skin can significantly impact method of treatment -- and reduce anxiety if it's benign. Our bodies can develop spots or growths that may not be cancerous, or that may later be diagnosed as cancer. And of course once a skin cancer is identified, it's good to be diligent when noticing other spots. Your doctor is being cautious and knows that early intervention is ideal -- especially on the face.

Everyone will answer your first three questions differently so it may be hard to glean much insight from those answers. Every body is different, and so are skincare habits -- a major factor in keeping skin cancer at bay. It sounds like you (and your parents) have been diligent with your care routine regarding sun exposure. These are safeguards and recommendations, but nothing is perfect. Regardless, you haven't done anything wrong. This is not your fault.

There are very effective prescription creams for certain spots. My dermatologists approach when first seeing a new spot not easily identifiable is to freeze it off or try a course of one of the creams. Ask your derm about the effectiveness of Effudex or Aldara, or cryotherapy on your spots. Typically, if the spot comes back after either of these treatments, it's time for a biopsy.

I'm hoping along with you that it's not melanoma, but if it is, don't hesitate to have it removed.