Antibiotics were deemed "miracle drugs" in the 1940s, but there are several misunderstandings about what they do and how they work. Find out 5 common misconceptions about antibiotics and the truths behind the myths.
Myth: Deemed the miracle drug in the 1940s, antibiotics are the cure-all of virtually any infectious disease.
Reality: Antibiotics only work on infections by bacteria, not viruses. Some fungi and parasites may be susceptible to certain antibiotics, but there are anti-fungals and anti-parasitic agents for their treatment
Myth: Prescribed antibiotics can be stopped when symptoms subside
Reality: It is absolutely essential to follow your doctors orders when it comes to taking antibiotics. Failure to complete doctors orders can result in reinfection or the emergence of antibiotic-resistant bacteria, or superbugs, which can be far more deadly and more difficult to conquer.
Myth: Antibiotics can be taken as preventative measures against some infections, such as while traveling overseas.
Reality: There is more harm than help in taking antibiotics when you arent sick. By using antibiotics when they arent needed, there is an increased risk of wiping out your bodys natural flora and making it prone to infection by pathogenic bacteria. Moreover, it is guaranteed that some bacteria (which may include those that cause disease) will survive during antibiotic treatment. These bacteria will be antibiotic-resistant, causing even more problems in the long run (see above). There are rare circumstances when antibiotic prophylaxis is recommended (i.e. dental procedures, gastrointestinal procedures, pneumocystis pneumonia prophylaxis in HIV patients, etc.)
Myth: Doctors can easily diagnose a bacterial infection during physical examination and prescribe antibiotics accordingly.
Reality: There are only a few signs that distinguish a bacterial infection from that of a virus or other infectious agent. However, it is not that easy to determine that an infection is bacterial without conducting additional tests. In most cases, infection by bacteria should be verified prior to antibiotics, but it is generally left to the doctors discretion. Prescribing antibiotics for a viral infection runs the risk of producing unnecessary side effects. For example, using amoxicillin to treat mononucleosis (the kissing disease), which is caused by a virus, can result in a whole body rash. More common side effects of antibiotic use include yeast infections and diarrhea.
Myth: It is better to use items that are deemed antibacterial (such as antibacterial soaps, toothbrush handles, socks, etc.)
Reality: Some antibacterial items are fine to use, as long as they dont contain antibiotics. Overuse and misuse of antibiotics can result in emergence of antibiotic-resistant strains of bacteria, which have their own slew of problems (see above).
Antibiotics. Medline Plus. US National Library of Medicine and National Institutes of Health.