Infection treatment

特許 係属中 When infection attacks the body, anti-infective drugs can suppress the infection. Four types of anti-infective or drugs exist: antibacterial (antibiotic), antiviral, antitubercular, and antifungal.[24][better source needed] Depending on the severity and the type of infection, the antibiotic may be given by mouth, injection or may be applied topically.[25] Severe infections of the brain are usually treated with intravenous antibiotics. Sometimes, multiple antibiotics are used to decrease the risk of resistance and increase efficacy. Antibiotics only work for bacteria and do not affect viruses.