This treatment is suitable for superficial and nodular Basal Cell Carcinomas as well as non invasive/intra-epidermal Squamous Cell Carcinomas. It is often performed on cosmetically sensitive areas such as the face. It is usually done in two sessions one week apart. Each session requires two appointments 3 hour apart. At the first appointment a photosensitising cream is applied which needs to be left on for a 3 hour duration. The cream is then left in place to activate and you may leave the clinic during this stage. On your return the treated area is illuminated with a special intense red light source. This takes around 7 minutes. There may be a small amount of pain and healing occurs within a week or so.