if a person is suffering from a severe infection caused by bacteria which solution mighr a doctor propose

In summary, the 6 main causes of antibiotic resistance have been linked to: Over-prescription of antibiotics. Patients not finishing the entire antibiotic course. Overuse of antibiotics in livestock and fish farming. Antibiotic resistance occurs when bacteria change in some way that reduces or eliminates the effectiveness of drugs, chemicals, or other agents designed to cure or prevent infections. The bacteria survive and continue to multiply causing more harm. Bacteria can do this through several mechanisms.