What condition is not treated with Keflex?

Keflex, also known as cephalexin, is an antibiotic that primarily treats bacterial infections. It is effective against a variety of infections, including skin infections, respiratory infections, and certain types of infections caused by bacteria.

In this context, the correct response indicates that injury pain is not a condition treated with Keflex. While it might be assumed that antibiotics could relate to post-injury scenarios, they do not address pain itself, which is often managed with analgesics or other specific pain relief medications.

In contrast, conditions such as infections and respiratory infections directly involve bacterial pathogens that Keflex is designed to combat, making them appropriate targets for this medication. Diarrhea, particularly when caused by a bacterial infection requiring antibiotic treatment, can also sometimes fall under the umbrella of conditions treated with Keflex. Thus, injury pain stands out as an inappropriate condition for treatment with this antibiotic.