Should both eyes be treated if one eye has a staph infection?

It depends on the specific situation and the advice of a medical professional. In some cases, only the infected eye may need to be treated, while in other cases, both eyes may be treated as a preventive measure to prevent the infection from spreading to the other eye. For example, in cases of highly contagious bacterial infections like staph infections, it's common practice to treat both eyes with antibiotic drops or ointments to prevent cross-contamination. However, it's always best to consult with a qualified eye doctor or healthcare provider to determine the most appropriate course of treatment for your specific condition. Self-medication is not advised, especially with eye infections.