Why is chemotherapy important? Chemotherapy is important because it is capable of curing the cancer disease by entering the blood stream and destroying the cells through the body. Obviously any patient before undergoing a particular chemotherapy would have the anxiety to know why is chemotherapy important other than other treatments. Why is chemotherapy important depends upon the stage of cancer the patient is suffering from, if the cancer is at a higher stage the importance of chemotherapy to that patient may be minimum like extension of the period life whereas if it is the early stage of cancer chemotherapy can completely eradicate the cancer cells. Chemotherapy can cure a many type of cancers but every cancer has it own reason why is chemotherapy important for the patient affected by that cancer. Chemotherapy for skin cancer is recommended only when the cancer is on the top layer of the skin. Usually chemotherapy creams are only recommended for the skin cancer patients undergoing chemotherapy, only at are circumstances chemotherapy injections or pills are prescribed by the doctors. In fact this treatment is only to stop the cancer to spread and this cannot cure the cancer completely. This treatment in overall is just to relieve the symptoms of the cancer.