
Most people prescribed antibiotics for sinus infections are on treatment courses of 10 days or longer even though infectious-disease doctors recommend five to seven days for uncomplicated cases, a U.S. study suggests.
Researchers examined data from a sample representing an estimated 3.7 million adults treated for sinusitis and prescribed antibiotics in 2016. Overall, 70 percent of antibiotics prescribed were for 10 days or longer, the study found.
"Anytime antibiotics are used, they can cause side effects and lead to antibiotic resistance," said senior study author Dr. Katherine Fleming-Dutra, deputy director of the Office of Antibiotic Stewardship at the U.S. Centers for Disease Control and Prevention in Atlanta.
"This is why it is so important to only use antibiotics when they are needed and to use the right antibiotic for the minimum effective duration," Fleming-Dutra said by email.
Common side effects of antibiotics can include rash, dizziness, nausea, diarrhea and yeast infections, she said. More serious side effects may include life-threatening allergic reactions and Clostridium difficile infection, which causes diarrhea that can lead to severe colon damage and death.
Antibiotic resistance occurs when bacteria develop the ability to defeat the drugs designed to kill them and can make infections harder to treat.