 It's the number one FDA-approved asthma inhaler available over the counter. Primatine Mist. Breathe easy again. Use as directed. Sweetie, want some fruit? You have to use the right tool for the job. A power drill is the wrong tool to slice fruit. Just like an antibiotic is the wrong tool to treat viruses, including colds and flu. Antibiotics are only needed for certain bacterial infections. When they aren't needed, antibiotics won't help you. And the side effects could still hurt you.