2014-02-28 10:43:02
Perhaps surprising to many, the notion that a fever is best treated by being reduced is not one that is supported by solid scientific evidence. A recently published study presented evidence that the use antipyretics to suppress a fever due to the seasonal flu actually increase the number of cases of influenza by 5%.(1) In fact most of the research over the past 20 years in this area doesn’t showcase antipyretics as having much benefit. Not only does it increase spread of illness but often delays recovery time, increases risk of a secondary infection and can even worsen symptoms.(2, 3) There is always great fear and panic around fevers and yet this is our natural built- in mechanism to fight unwanted invaders. Most viruses have a narrow temperature tolerance in which they survive and replicate. By increasing the body’s temperature, it can inactivate and kill such organisms. This adaptive response has been around for eons and isn’t limited to just us humans, it is seen throughout the animal kingdom.(4) Although there are cases in which fevers can rise to dangerous levels and do require medical attention, including fever reducing meds, these are far and few between. Most infections and the subsequent fever that arises are not-life threatening(3, 4) and the use of antipyretics for these cases are not supported by the research. So what should we do when we get hit with the flu? Stay home, rest, drink plenty of fluids, monitor your temperature and if in doubt always seek the guidance and care of a healthcare professional.
References
1. Earn DJD, Andrews PW, Bolker BM. Population-level effects of suppressing fever. Proc Biol Sci. 2014; 281(1778):20132570.
2. Doran TF, de Angelis C, Baumgardern RA, Mellits ED. Acetaminophen: more harm than good for chickenpox? J Pediatr. 1989; 114(6):1045-8.
3. Hudgings L, Kelsberg G, Safranek S. Do antipyretics prolong febrile illness? J Fam Pract. 2004; 53(01):55-71.
4. Kluger MJ, Kozak W, Conn CA, Leon LR, Soszynski D. The adaptive value of fever. Infect Dis Clin North Am. 1996; 10(1):1-20.