Answer to Question 1
C
If a cold persists for more than a week to 10 days without improvement, a bacterial infection is present and requires medical treatment. While the etiology of a cold is viral in nature, antibiotics are necessary to this secondary bacterial infection. No cure exists for a cold. Antibiotics will not reduce symptoms of a cold or decrease the contagion period for a cold.
Answer to Question 2
A
A thin line of eye ointment should be applied from the inner canthus to the outer canthus along the lower eyelid inside the conjunctival sac.