Rodent ulcer; Skin cancer - basal cell; Cancer - skin - basal cell
The best way to prevent skin cancer is to reduce your exposure to sunlight. Ultraviolet light is most intense at midday, so try to avoid sun exposure during these hours. Protect the skin by wearing hats, long-sleeved shirts, long skirts, or pants.
Always use sunscreen:
- Apply high-quality sunscreens with SPF (sun protection factor) ratings of at least 15.
- Look for sunscreens that block both UVA and UVB light.
- Apply sunscreen at least 30 minutes before going outside, and reapply it frequently.
- Use sunscreen in winter, too.
Also note if an existing skin sore bleeds, itches, is red and swollen (inflamed), or is painful.
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Eigentler TK, Kamin A, Weide BM, et al. A phase III, randomized, open label study to evaluate the safety and efficacy of imiquimod 5% cream applied thrice weekly for 8 and 12 weeks in the treatment of low-risk nodular basal cell carcinoma. J Am Acad Dermatol. 2007;57(4):616-621.