Effect of paracetamol or any antipyretic tablets
This is a controversial topic. I co-authored a paper that drew on this research to make conclusions about population-level effects. The only situations I can recall where antipyretics have been shown to be clinically beneficial is in severe cases where inflammation itself is causing neurological damage (e.g., acute brain injuries); results for e.g. infectious diseases are ambiguous. In our paper, we summarized previous research on the costs and benefits of fever suppression as follows (our summary may be slightly biased in the direction of "fever suppression is bad" ...)


  Previous investigations of the effects of fever suppression have focused on the clinical benefits and costs to the individual [8,9]. The adaptive value of fever [10–13] is well known to immunologists; for example, Janeway's Immunobiology [14, p. 110] notes that ‘At higher temperatures, bacterial and viral replication is less efficient, whereas the adaptive immune response operates more efficiently’. Others argue that the adaptive value of fever arises instead from activation and coordination of the immune response [12]. By contrast, a common view in the medical community, as expressed for example in Harrison's Principles of Internal Medicine, is that the ‘treatment of fever and its symptoms does no harm and does not slow the resolution of common viral and bacterial infections’ [15, p. 107] ...


References from this section:


  
  Mackowiak PA. 2000 Physiological rationale for suppression of fever. Clin. Infect. Dis. 31, S185–S189. (doi:10.1086/317511)
  Eyers S, Weatherall M, Shirtcliffe P, Perrin K, Beasley R. 2010 The effect on mortality of antipyretics in the treatment of influenza infection: systematic review and meta-analyis. J. R. Soc. Med. 103, 403–411. (doi:10.1258/jrsm.2010.090441)
  Kluger MJ. 1991 The adaptive value of fever. In Fever: basic mechanisms and management (ed. Mackowiak PA), pp. 105–124. New York, NY: Raven Press Ltd.
  Hasday JD, Fairchild KD, Shanholtz C. 2000 The role of fever in the infected host. Microbes Infect. 2, 1891–1904. (doi:10.1016/S1286-4579(00)01337-X)
  Blatteis CM. 2003 Fever: pathological or physiological, injurious or beneficial? J. Thermal Biol. 28, 1–13. (doi:10.1016/S0306-4565(02)00034-7)
  Simon HB. 2003 Hyperthermia, fever, and fever of undetermined origin. In Infectious diseases: the clinician‘s guide to diagnosis, treatment, and prevention. (ed. Dale DC). New York, NY: WebMD Professional Publishing.
  Murphy KM. 2011 Janeway‘s immunobiology, 8th edn. New York, NY: Garland Science.
  Dinarello CA, Porat R. 2008 In Harrison's principles of internal medicine (eds Fauci AS, Kasper DL, Longo DL, Braunwald E, Hauser SL, Jameson JL, Loscalzo J), 17th edn, p. 2958. New York, NY: McGraw-Hill.