Basal cell carcinoma is one of the most common cancers and its incidence is increasing worldwide, putting a significant burden on health services. Topical treatments are available for superficial basal cell carcinoma (BCC) but there has a lack of long-term follow-up data to guide treatment decisions. A three-year randomized controlled clinical trial has found that two topical creams are effective in most primary, low-risk superficial BCC, comparing favorably with photodynamic therapy (PDT).