How can skin cancer be treated?

Usually surgery. Most skin cancers are treated initially with surgical excision. In some cases, depending on the type of tumor, other modalities may be employed. These include radiation, chemotherapy, photodynamic therapy, cryotherapy, and others.
Usually excision. Some type of excision is the primary treatment for skin cancers. Usually a biopsy is done, then some means of removal. Options for superficial lesions include liquid nitrogen, shave biopsy, and topical medications. These method are inappropriate for melanomas and deeper lesions which usually need to be surgically excise. Rarely radiation therapy and other modalities can be used.
Depends. This depends on the type of skin cancer. Usually it involves a local treatment of removing the cancer with a margin of normal tissue. It melanoma it may also require the removal of lymph nodes depending the features of the melanoma.

Related Questions

I just found out that I may have skin cancer. What happens if I don't get it treated?

Depend on the cell. Depends on what type of skin cancer, basal cell cancer takes years years to erode through, melanoma spreads rapidly if untreated, basal cell spreads slowly (less rapid)treatment is simple prognosis is excellent in localized stage see your doctor with out delay.
Depends on severity. There are three kinds of common skin cancer: basal cell, squamous cell, and melanoma. Untreated, melanoma can kill you. Squamous cell can spread to other organs or lymph nodes and cause real trouble or, rarely, death. Basal cell gets bigger and deeper and needs more surgery the bigger it gets. The bottom line is, see a skin doctor and get treated asap. Good luck!
Will spread. It will continue to spread causing local destruction. Some types will metastasize by spreading and then invading into the bloodstream or lymphatics and then spread to other parts of the body which can then result in death. The skin cancer needs to be properly treated in a timely fashion in order to ensure the best outcome.
Depends on type. The three most common skin cancers are basal cell carcinomas, squamous cell carcinomas and melanomas. Untreated melanomas are most likely to be life threatening and can often metastasize to the brain or other organs. Basal and squamous cell skin cancers grow as localized tumors and then can spread to lymph nodes. Early detection minimizes scarring, makes treatment easier & saves lives.

How is skin cancer treated? How are cancerous moles treated?

Depends. Skin cancer can be treated in many different ways. If by "cancerous mole" you mean melanoma, it is best to excise this surgically. See your plastic surgeon or dermatologist for more information and a consultation.
Removal! It depends on the type, but removal is the key. You start with a biopsy to determine how aggressive or type of cancer it is. Then wide excision (cutting out a large area) perhaps further treatment depending on the type.
Skin cancer. There are different techniques to remove skin cancer. The technique that has the highest cure rate and that spares the most normal tissue is called mohs micrographic surgery. This method allows the cancer to be traced out under the microscope by examining the entire periphery of the excised tumor. If any roots are seen the excision and microscopic checking continues until tumor free plane obtained.

Bottom lip had skin cancer, treated w/aldara over 1 yr ago. Cancer gone. Lip still huge & chapped. Nothing helps it. Tried everything w/dermatologist.

See Surg/Derm. This may very well be side effects of aldara (imiquimod). You should go see your dermatologist to find out. More importantly, you need to be sure that you don't have an underlying skin cancer. And if there is no recurrence, you can talk to a plastic surgeon or in some cases oral surgeons or ear/nose doctors about surgical options such as cheiloplasty. Where some or all of the damaged mucosa could be shaved.

Who is the best skin doctor in mumbai? Considering being a medical tourist to have my skin cancer and aks and veins treated

Many. Every medical tourist will have but best skin doctors are in your own town.
Medical tourism. I don't recommend medical tourism in general... This is especially true for cancer treatment. Cancer surveillance is critical, and a mistake in pathologic analysis and/or appropriate followup could be a fatal mistake. If complications arise, the quality of your medical care could be compromised. I would never recommend anyone I know seek care abroad for cancer treatment.