Fever is a sign that the body is fighting an infection or inflammation. During an infection, there is an immune response that includes the production of inflammatory cells that can be carried by the lymphatic system. Lymphatic drainage can increase lymph flow and consequently accelerate the transport of these inflammatory cells, which can worsen inflammation and increase fever symptoms. In addition, the patient with a fever may have a weakened immune system, which increases the risk of spreading the infection to other areas of the body. Therefore, it is recommended that lymphatic drainage be performed only after complete recovery.