The aim of symptomatic treatment is to eliminate the signs and symptoms of the disease without completely treating the disease. Although the main purpose of this treatment is the comfort of the patient, it also prevents the symptoms from causing other diseases. Since there are many side effects in cancer, the symptoms that occur are also quite high. Symptomatic treatment can be applied so that the patient can better cope with the symptoms resulting from cancer treatment. Since there is no direct treatment for diseases such as bird flu and swine flu, symptomatic treatment is generally used in the treatment of such diseases. Pain in the body can occur as a result of an illness. However, by using painkillers, it is aimed to treat the symptom caused by the disease, not the disease. In addition, using anti-inflammatory drugs to eliminate inflammations that cause joint pain, and using cough medications or syrups for the treatment of cough that occurs when flu or colds are present can be given as examples of symptomatic treatment. Again, the application of antihistamines in allergy diseases is an example of this. It is also possible to use more than one drug to relieve symptoms. However, symptomatic treatment is often not a complete solution. Since the cause of the disease cannot be determined, it may occur as a result of delayed treatment of the main disease.