Dear Lynn,
Welcome to the Dermatology Expert Forum!
It is possible that you have developed an actinic keratosis (considered precancerous lesion) on your nose. Treatment is desired for such a lesion for preventive and aesthetic reasons.
Inflamed seborrhoic keratosis (completely benign lesion) is one of several differential diagnoses to be investigated by a dermatologist you plan to see.
Do not worry, just be proactive. Seeing a dermatologist is a good decision.
Wishing You Optimal Health,
Dr. Jasmina Jankicevic
In the mean time, there are some fantastic anti-microbial natural oils you can try to see of they help, and if they don't, you can cook with them: extra-virgin olive oil, unprocessed coconut oil, grapefruit seed extract (diluted), and oil of oregano (diluted) to name a few.
It may be some sort of infection, and although it's not scientifically verified, I'm convinced there can be a causal effect from infection to cancer in some cases.
Have a doc look at it regularly for changes. You may want to have a specialist in the offing (call one, keep their contact info handy, & see how soon they could get you in) just in case you do see developments.