How Often should you take cephalexin?

Cephalexin is in a group of drugs called cephalosporin antibiotics. It is used to kill bacteria that cause upper respiratory infections, ear infections, skin infections, and urinary tract infections.
The dosage will depend on what type of infection you are treating and how severe it is. It may be given 2 to 4 times a day.
See the link below for more detailed dosage information.
https://www.drugs.com/dosage/cephalexin.html