Non-melanoma skin cancer is a common and highly treatable type of cancer that originates in the top layer of the skin. How is Skin Cancer Treated? The treatment for non-melanoma skin cancer depends on several factors, including the type of cancer, its size, location and the patient's overall health. What are the Side Effects of Skin Cancer Treatment? Next Steps After Being Diagnosed With Skin CancerA non-melanoma skin cancer diagnosis can be unsettling, but it is highly curable with the right treatment.