Cancer immunotherapy is a therapy used to treat cancer patients that involves or uses components of the immune system. Some cancer immunotherapies consist of antibodies that bind to, and inhibit the function of, proteins expressed by cancer cells. Other cancer immunotherapies include vaccines and T cell infusions.

https://www.nature.com/subjects/cancer-immunotherapy

Immunotherapy sometimes results in the immune system attacking healthy cells, which can cause side effects.

The most common side effects of immunotherapy include:

Skin reactions, Flu-like symptoms [Fatigue (feeling tired), fever, chills, weakness, nausea (feeling sick to your stomach), vomiting (throwing up), dizziness, body aches, and high or low blood pressure are all possible side effects of immunotherapy], Muscle aches, Shortness of breath (trouble breathing), Swelling of legs (edema), Sinus congestion, Headaches, Weight gain from retaining fluid

Diarrhea, Hormone changes, including hypothyroidism, which is when the thyroid gland does not make enough thyroid hormones and can cause fatigue and weight gain, and Cough.

https://www.cancer.net/navigating-cancer-care/how-cancer-treated/immunotherapy-and-vaccines/side-effects-immunotherapy

• Treat the Root of Disease
• Integrated with Conventional Medical Oncology Care
• Reverse Cancer-Mediated Immunosuppression
• Build and/or Boost Anti-Cancer Immunity / Immune Surveillance Against Cancer
• Relieve Treatment Side Effects and Cancer Complications
• Improve Quality of Life of Cancer Patients
• Improve Cancer Survival Rate and Life Expectancy
• Improve Quality of Cancer Care
• Improve Cancer Prevention
• Collaborate with the Best Giant Oncologists in the World
• Effective Alternative Cancer Care