This Terrifying Skin Cancer Selfie Will Convince You to Wear SPF

"This treatment was done using a cream called Aldara (imiquimod)," explains Tawny. This at-home topical treatment causes your immune system to attack skin cancer cells, which causes the scabbing and crusting you see in the photo. Tawny has tried a wide range of treatments, including cryotherapy, surgical excision, and photodynamic therapy (PDT). Consider us scared straight!