Antibiotics

Antibiotics are powerful medicines that fight bacterial infections. Correct use can save lives. Antibiotics kill bacteria or prevent them from reproducing. After taking antibiotics, the body's natural defenses are sufficient. It is importante to know that antibiotics do not fight infections caused by viruses such as cold, flu, most coughs and bronchitis, and sore throats, unless caused by strep. 

When you use antibiotics unnecessarily would only increase the risk of antibiotic resistance, so they are not routinely use. Antibiotics can be provided in several ways. Oral antibiotics, topical antibiotics and injections of antibiotics. The oral antibiotics are tablets, pills and capsules or a liquid, they can be used to treat most types of mild to moderate infections in the body. Topical antibiotics are creams, lotions, sprays or drops, they are often used to treat skin infections. By last, injections of antibiotics, they can be given as an injection or infusion directly into the blood or muscle, and are usually reserved for more serious infections. Furthemore, the mechanism of action of antibiotics are hat affectinhibiting the synthesis of the cell wall, inhibiting protein synthesis, DNA gyrase synthesis, among other effects. All this depends on the type of bacteria that the antibiotic is  affecting.

This video show to you how the antibiotics work in our body: https://www.youtube.com/watch?v=IVBCrzjOl40

Most of this information is from: https://www.nlm.nih.gov/medlineplus/antibiotics.html and http://www.nhs.uk/Conditions/Antibiotics-penicillins/Pages/Introduction.aspx