I have a strange problem with my nose. The skin on both sides of my nose became red, hard and swollen. It started about eight months ago and is slowly spreading all over my nose. At the moment it occupies about half my nose on both sides. A trip to the local doctor as well as a specialist didn't explain anything as they couldn't give a diagnose.
It looks like you have some blocked pored (blackheads) on one of your nostrils. Considering that the nose is the an active center of oil production, is it possible those are cysts? Those are a type of acne that can form a semi-solid bolus underneath the skin and cause pain.
Also, have had a lot of skin exposure? I am not a doctor, and have little knowledge of skin cancer, but you could at least get checked.
Ignore the irresponsible misinformation and ignorant responses of some posters. This is the third subtype of Rosacea called Phymatous Rosacea, or Rhinophyma. It isn't cancerous, but can be confirmed with a biopsy. The cause is typically untreated Rosacea, and there are a number of surgical treatment options available for it. This condition warrants a visit to the dermatologist, especially if trying to control its spread.