answer:Only if your body does it in the form of a fever. However, loss of fluids will make you feel worse. Our bodies produce a fever as part of its immune response. Fevers can get out of hand and need treating, but most fevers can be left to run their course. I believe it is actually good to leave fevers that remain under the limit of harm. (it is different for children and adults). Trying to make your body heat up to get rid of a virus? I am not so sure about that one. I know I feel better after a sauna, but I make sure to drink plenty of water. Sweating through bedclothes does not appeal at all. From the Medical Dictionary, under ‘Fever’. Fever is an important component of the immune response, though its role is not completely understood. Physicians believe that an elevated body temperature has several effects. The immune system chemicals that react with the fever-inducing agent and trigger the resetting of the thermostat also increase the production of cells that fight off the invading bacteria or viruses. Higher temperatures also inhibit the growth of some bacteria, while at the same time speeding up the chemical reactions that help the body’s cells repair themselves. In addition, the increased heart rate that may accompany the changes in blood circulation also speeds the arrival of white blood cells to the sites of infection.