Antibiotics for viral infections, including ear infections. I'm sick, so my doctor gave me an antibiotic... Time and again, I come across situations where I am asked about using antibiotics and their potential effects on the body. Firstly, I never want to totally dismiss antibiotics, as they are an absolutely necessary cure to many conditions. Without question, antibiotics have saved millions of lives, and we would not want to live in the 21st century without them. Although antibiotics have dramatically decreased deaths from infectious disease, there is a cost.