There are several treatments that may be useful for treating these types of skin cancer. They are usually performed under local anesthesia.
The best treatment depends on the type of cancer, location, whether it is primary (first time) or recurrent, general health of the patient, and the expertise of the dermatologist along with the availability of the technology to perform the procedure.
Some of the available treatments are: cryosurgery, electro-surgery + spoon, surgical excision, photodynamic therapy, laser surgery and topical drugs. The best treatment with a percentage of 99% success in primary carcinomas (previously untreated) and 95% in the relapsed carcinomas is MOHS micrographic surgery. The problem lies in the availability of operating rooms with adjacent laboratories and specially the training, expertise and title in clinical derma-pathology of the Doctor performing the surgery. A microscopic examination and interpretation is crucial in healing the tumor.