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.
Sometimes, depending on the size of the abrasion, a patch is placed over the closed lid. A patch helps to decrease pain and helps large abrasions heal faster. An eye should not be patched continuously for more than 24 hours. The patch should be removed at least daily and the antibiotic drop or ointment put in the eye again.