Ford's first Model T engine had four cylinders in a row. Some luxury cars of the 1920s had inline engines with as many as eight cylinders. Engines with as many as 12 or more cylinders in a row have been used, but mainly in large marine and stationary engines. Of course smooth running is only one goal.
In brief: Antibiotic eye drops. They start in hours but they may take 7-10 days to get rid of the bad bacteria. ...If you start antibiotics use them as directed, usually 7 days.. In brief: Antibiotic eye drops. They start in hours but they may take 7-10 days to get rid of the bad bacteria.
Treatment for bacterial conjunctivitis. More than half of bacterial conjunctivitis cases will clear up in one to two weeks without treatment. Taking an antibiotic may speed up the healing process. Your doctor may prescribe antibiotic eyedrops or ointment. Ointment may blur vision for up to 20 minutes after application.